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Best Choice Luocute New
V Shape Wheel, 5mm Bore 625 Bearing Pulley Accessories Double Bearing Sliding Gate for CNC 3D Printer, 20pcs V Grooved W Made of POM material, these wheels are and sturdyuxcell New
uxcell Shower Door Rollers Runners Wheels V Grooved Replacements Product Name : V Grooved Shower Door Roller;Roller Size : 22x 7mm/ 0.87" x 0.28" (D*T)Generic New
20Pcs 5mm Bore V Bearing, 625 Roller V Shape Wheel, V Pulley Bearing Pulley Accessories for CNC 3D Printer, V Grooved Wh Made of POM material, these wheels are and sturdyBest Value YUANQIAN New
8 Shower Door Rollers Runners Wheels V-Grooved Replacements 8x Shower Door Rollers /Runners/Wheels 22.5mm Wheel DiameterNDNCZDHC New
4pcs Pulley Wheel, 0840UU V-Grooved Wheels 8x39.5x20.1mm Pulley Pulleys Pulley Wheels U Groove Bearing Roller Bearing fo Wide Range of Applications: These pulleys are widely used in doors to drive mechanical equipment. Their reliable performYUANQIAN New
YUANQIAN Replacement Shower Door Rollers/Runners/Wheels V Grooved 19mm Diameter YQ19 HIGH OF QUALITY: High quality POM plastic. fit different kinds of showers.Ensure your doors the most comfortable glideiplusmile Newiplusmile 2pcs Small Printer Pulley v Grooved Wheel for Printer Quiet Operation High Precision Replacement Parts Smooth and quiet: these v grooved wheel pulleys provide smooth and quiet operation, enhancing the overall performance ofAexit NewAexit Shower (Measuring tools) Door Rollers Runners Wheels V (21ry694qf217) Grooved Replacements Product Name : V Grooved Shower Door Roller;Roller Size : 22x 7mm/ 0.87" x 0.28" (D*T)uxcell Newuxcell 10pcs 3D Printer V-Slot Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, BearNXAWUE NewShower Door Wheels, 4 X Replacement/Runners/Wheels V Grooved 19mm Diameter Shower Door Wheels Fit for most shower rooms, steam rooms, and are installed on the top and bottom of the shower door to make it easy to opMLHpeak NewMLHpeak 4 Pack 2inch V-Type Groove Wheel, Heavy Duty Rigid Caster with Bracket, for Inverted Track, Rolling Gate, Slidin MATERIAL: Made of high quality steel with galvanizedZYLZAY NewTrack Roller U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.Aexit NewAexit 3" (Construction hardware) Diameter Wheel Metal V Grooved Rigid Caster for (22ry813qf489) Industrial Carts Product Name : V Groove Rigid Caster;Material : MetalShower Part New4 x Shower Door Rollers V Grooved Ball Joint Runners/Wheels 20mm Diameter LW045 Baxnore NewBaxnore V6000ZZ V Grooved Bearing, Steel Roller Bearing, Single Roller Guide Bearing, Heavy Duty Deep Groove Bearing for Material: Crafted from stainless steel, our roller bearings offer durability, maintaining their integrity even in challeZIQI NewZiqi 2PCS V Type Pulley Roller 304 Stainless Steel Pulley Block Duplex Bearing Super Silent Heavy Duty Grooved Wheel, Lo STAINLESS STEEL MATERIAL: Durable, strong, reliable, waterproof, anti-high temperature and rustproof, outdoor use can alLyplus NewLyplus 4-Pack 660 lbs Heavy-Duty 2in V-Groove Casters with Brackets for Sliding Gates Wheel, Rolling Gates and Industria High load capacity: This set of 4 wheels has a maximum load capacity of 660 lbs each.uxcell Newuxcell 26pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell V623 V-Groove Guide Pulley Rail Ball Bearings 3mmx10mmx3mm Carbon Steel Miniature Bearings 10pcs V623 (I.D.=3mm, O.D.=10mm, Thickness=3mm)Uni-Mig NewUNIMIG 30/22 Drive Roller Gear V Groove Steel Welding Wire Welder Wheel (V Grooe|0.8mm-0.9mm|2 Roller) V Groove for Steel Welding WireANKROYU NewANKROYU V Groove Wheel, Steel Sliding Door Track Caster, Industrial Guiding Pulley, V Groove Sliding Gate Wheel for Slid 【Bearing Capacity】Experience the strength of our wheels, designed with a robust load and bearing capacity. Whether you'rZJSCNBE NewZJSCNBE 10Pcs V625ZZ V Grooved Straightener Guide Wheel Bearings 625VV ABEC-7 V Groove Pulley Roller Bearing V120 5 * 16 The bearing is stable, low noise and long service life.Aswalling NewAswalling 1-Pack V-Type Stainless Steel Pulley Block Mute Bearings Groove Sliding Roller Track Wheel Fit for 3mm-10mm wire rope, or twine.LMLAZXB NewU Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type Pulley Block ( SpecificationsGJHL NewCurtain Pulley 8 Pieces V Grooved 19MM Wheel Dia Shower Door Wheel Runner Roller Durable *100% Brand new and high qualityGJHL NewCurtain Pulley 8 Pieces V Grooved 19MM Wheel Dia Shower Door Wheel Runner Roller Durable - Brand newuxcell Newuxcell 20pcs 3D Printer V-Slot Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, BearYOLXGZ NewPulley Block U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.HBXRBYC NewShower Room Pulley Wheels, 4 X Replacement/Runners/Wheels V Grooved 19mm Diameter Shower Door Wheels Shower door rollers rolling friction coefficient is small, smooth sliding,can be a good replacement for your old or brokBIUSISGJ NewPulley Wheel U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.KEILEOHO NewKEILEOHO 4 PCS 2 Inch V Groove Wheel,1045 Steel Heavy Duty Caster Wheels Sliding Gate Rollers Pressure Bearing Pully V-S 1045 ELECTROPLATED STEEL - Our v-groove wheel is made of 1045 electroplated steel which has higher strength, rigid stronFCFZBTBNM NewFCFZBTBNM 2 Inch Roller Wheel Bearings V/U Groove Pulley Wheels Detachable Heavy Duty Grooved Wheel for Material Handlin Made of high-quality materials, easy to install and use, wear-resistant.uxcell Newuxcell 20pcs V623ZZ V Groove Guide Pulley Bearing 3x12x4mm Carbon Steel Rail Ball Bearings Wheel, ABEC3 V623ZZ Bearing: I.D.=3mm, O.D.=12mm, Thickness=4mm, Groove width=3mm, Groove depth=1.5mm.XEBQWDSA New5pcs V U Groove Roller Wheel Ball Bearings Embroidery Machine Pulley Bearing(V624ZZ 4x13x6mm) V/U Groove Wheel Design - Features specialized groove tracks for smooth operation in pulley and roller applicationsWanRomJun NewV-Groove Wheel,50mm/1.97in Diameter 2.5mm/0.1in Support Thickness V‑Type Groove Wheel Heavy Duty Rigid Caster with 2.5mm 【Low friction】Sheaves have the characteristics of low friction, high speed, non-flammable, high load, more durable, andYUNYANZI NewYUNYANZI Curtain Runners,Window Pulley,Smooth and Silent V Nylon Grooved Rollers, Heavy Duty Sliding Door Rollers with S 【Smooth and Silent Rotation】Designed with a double bearing system, these rollers feature refined bearing steel that flexVUYBVY NewVUYBVY V-Groove Stainless Steel Sliding Gate Rollers, Heavy Duty Cable Pulley, V-Shaped Gate Wheel Block, Silent And Smo Stainless steel material: The groove wheel is made of high-quality stainless steel, solid and durable to use.VUYBVY NewVUYBVY 2Pcs Stainless Steel V Groove Wheel Caster Heavy Duty Track Rigid Pulley Wheel Sliding Gate Rollers with Sliding STAINLESS STEEL MATERIAL: : The slotted wheels are made of stainless steel, which has higher strength, overcapacity, antHaofy NewHaofy Sliding Gate Roller, V-Groove Track Wheel, Sliding Door Roller, for Track Doors and Mechanical Carts 【Wide Application】 Used to inverted track, yard gate, rolling gate, patio sliding gate, industrial machines, wire rope rHaofy NewHaofy Sliding Gate Roller, V-Groove Track Wheel, Sliding Door Roller, for Track Doors and Mechanical Carts 【Wide Application】 Used to inverted track, yard gate, rolling gate, patio sliding gate, industrial machines, wire rope ruxcell Newuxcell 10pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 13pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 8pcs 1.2" V Groove Wheel Sliding Gate Caster, Rigid Caster Wheels with Bracket for Inverted V-Track, 661 lbs Capa Size - Wheel Diameter: 30mm / 1.2"; Groove Width: 15mm / 0.59", Groove Depth: 7mm / 0.28", Capacity Per Wheel: 300kg / 6uxcell Newuxcell 10pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625-2RS Double Shield B Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 10pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 10pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 16pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625RS Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, BearVUYBVY NewVUYBVY 3In 304 Stainless Steel Sliding Gate Wheels U Groove Track Roller Heavy Duty Pulley Smooth Bearing Plate Double C STAINLESS STEEL MATERIAL: : U-groove wheels are made of 304 stainless steel, which has higher strength and better abilituxcell Newuxcell 8pcs V624ZZ V Groove Guide Pulley Bearing 4x13x6mm Carbon Steel Rail Ball Bearings Wheel, ABEC3 V624ZZ Bearing: I.D.=4mm, O.D.=13mm, Thickness=6mm, Groove width=4mm, Groove depth=2mm.uxcell Newuxcell 26pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625RS Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 13pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 26pcs 3D Printer POM Rollers, Solid High-Speed Gantry Wheels V Slot POM Pulley Wheel with 625ZZ Double Shield Bea Product Detail: 3D Printer pulley wheels Outer Diameter: 24mm, Inner. diameter: 5mm, Height: 10mm, Noise Level: Z2, Bearuxcell Newuxcell 12pcs V623ZZ V Groove Guide Pulley Bearing 3x12x4mm Carbon Steel Rail Ball Bearings Wheel, ABEC3 V623ZZ Bearing: I.D.=3mm, O.D.=12mm, Thickness=4mm, Groove width=3mm, Groove depth=1.5mm.ANKROYU NewANKROYU mm Groove Wheel, V Type Casters with Bracket, Heavy Duty Wire Rope Rail Wheel, Industrial Deep Rope Wheel, Spher 【Versatile Fit】Perfect for any 90° angle iron or steel application, this industrial guide wheel boasts smoothness rollinVUYBVY NewVUYBVY 3In 304 Stainless Steel Sliding Gate Wheels U Groove Track Roller Heavy Duty Pulley Smooth Bearing Plate Double C STAINLESS STEEL MATERIAL: : U-groove wheels are made of 304 stainless steel, which has higher strength and better abilitJEWEDECO NewJEWEDECO Drill Press Accessories Log Pulley Portable Drill Press Drilling Bracket Pulley Wheels Door Track Pulley Stainl Practical aluminum material: made with aluminum, this pulley wheel is light yet robust, providing reliable performance,aDQDHHR NewPulley Wheel U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.uxcell Newuxcell 12pcs V624ZZ V Groove Guide Pulley Bearing 4x13x6mm Carbon Steel Rail Ball Bearings Wheel, ABEC3 V624ZZ Bearing: I.D.=4mm, O.D.=13mm, Thickness=6mm, Groove width=4mm, Groove depth=2mm.FUZAHO NewPulley Wheel U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.ASORXI NewPulley Block U Type Single Wheel Pulley Roller 304 Stainless Steel 360 Degree Rotation Heavy Duty Grooved Wheel V Type P Widely used for rope tools' traction.BVNFGHJK NewCastor Wheels, Heavy Duty Nylon Sliding Door Rollers Smooth and Noise Free Sliding Doors(V 30MM) Smooth and Silent Operation】The double bearing design with refined bearing steel allows for flexible rotation and smoothBLLNDX New2inch V-Groove Wheels BLLNDX 2PCS 50mm Heavy Duty Rigid Casters Pulley Sliding Gate Roller Wheel for Inverted Track, Ind Material: V-groove casters are made of high quality steel, galvanized strong.yuksok Newyuksok 4Pcs V Type Groove Wheel Silent Rigid Caster for Inverted Track Sliding Gate 【MUTI-APPLICATIONS】: Fit to heavy duty sliding gate, factory door, industrial machines track project, dog gate, garage dHUANGYUZHENZHI NewHUANGYUZHENZHI V-Groove Wheel 45# Steel Sliding Door Track Rigid Caster Industrial Guiding Pulley Lifting Wheel 1. the wheels have a strong load capacity and a strong bearing capacityClarke Brothers NewClarke Brothers Wheel Marking Gauge Kit - 2 Extra Cutter Wheels, Roll Stop Head, Micro Adjuster, Metric Imperial Ruler, NOW GRADUATED. The steel bar features an engraved, graduated ruler for making accurate measurements. Marking gauge is avCdemiy NewCdemiy Pulley Wheel, 5 Pack Stainless Steel Pulley Block, V Groove Pully Heavy Duty Rigid Caster, Mute Bearings Sliding HIGH-QUALITY MATERIAL -- This pulley is made of thickened steel, with fine workmanship, smooth wheel grooves without burXUJIAM NewPulley Wheel,,U Type Stainless Steel Groove Wheel Pulley,for Heavy Duty Traction,Steel Wire Lifting Sliding Door Grooved Made of high quality stainless steel materials, beautiful appearance and durableZJYWMM NewV Groove Rigid Caster Wheel,45# Steel Castor,Sliding Gate Roller,Groove Wheel Heavy Duty Caster with Bracket,for Barn Do Material: V-groove casters are made of high-quality 45# steel, galvanized, rust-proof, wear-resistant, high strength, goBAIWEN New4 Inch Diameter Gold V Groove Wheel for Sliding Rolling Slide Chain Gear Rack Gate Track, Rigid Caster for Gate Frame,fo Product dimensions: 4"/(Approx) 100mm diameter, 4.2"/(Approx) 106mm height; Color: Gold, Designed for loads of up to 300XUJIAM NewPulley wheel,,30mm Nylon Grooved Rollers Heavy Duty Sliding Door Rollers with Stand Steel Pipe Support Rail Pulley (Colo Wheels are made of high-quality nylon material, thickened and weighted, the products are all solid and super load-bearinYUUSONSM NewPulley Pulley Wheel,,U Type Stainless Steel Groove Wheel Pulley,for Heavy Duty Traction,Steel Wire Lifting Sliding Door Made of high quality stainless steel materials, beautiful appearance anduxcell Newuxcell 3-inch Dia V Groove Rigid Caster Wheel for Sliding Door Track Mounting Hole Distance: 86 x 28mm / 3.38'' x 1''(L*W); V Groove Width: 20.5mm / 0.8''; Total Height: 90mm / 3.5''CekoCk NewPulley Pulley Rope Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pulley, for Heavy Duty Tr Material: durable stainless steel 304.CekoCk NewPulley Pulley Rope Pulleys for Wire ,Groove Wheel Pulley 30mm Nylon Grooved Rollers Heavy Duty Sliding Door Rollers with Material: durable stainless steel 304.ANKROYU NewANKROYU Groove Wheel, Stainless Steel V Shaped Groove Wheel with Bracket, Sliding Gate Track Wheel for Inverted Track Ro 【Material】Experience the strength of our pulley, crafted from stainless steel. This material is wear resistant and posseVUYBVY New3in V Groove Wheel Stainless Steel Groove Wheel Heavy Duty Track Wheel Rigid Caster Sliding Gate Roller Wheel Double Bea STAINLESS STEEL MATERIAL: The groove wheel is made of stainless steel with good wear resistance, heat resistance, low teXUJIAM NewPulley Wheel,,2 Pcs Groove Wheel Pulley Block 304 Stainless Steel Pulley Roller Heavy Duty Duplex Bearing Silent Grooved 【Specifications】Wheel Diameter 48mm(1.9inch). Overall Height 54mm(2.1inch). Overall Width 30mm(1.18inch). Groove Width 1GENHAKON New11 PCS 2 Inch V Groove Wheel, V Groove Wheel, Sliding Gate Wheels,for Sliding Gates, Rolling Gates, and Even As Pulleys 【Superior Durability】 Made of high-quality materials like 1045 steel, our GENHAKON V Groove Wheel are built to last, proKJAOYU NewV Groove Wheel, Sliding Gate Casters, Heavy Duty Roller for Inverted V Track, Rolling Gate, V Shaped Groove Wheel with S Stainless Steel: Constructed from stainless steel, this groove wheel is and highly , offering long-lasting with high strZZVYSSHN NewV/U Groove Pulley Wheels,Roller Wheels,Heavy Duty Cast Iron Caster,Sliding Door Roller,300kg Load Capacity,for Round Tub Material: U-shaped sheave is made of high-quality heavy-duty cast iron, with high hardness, wear resistance, color-plateKOHAND NewFAATCOI V Groove Wheel, 2 Inch Heavy Duty Rigid Caster Wheels V Shaped Steel Sliding Gate Roller Hardware with Bracket f STEEL STRUCTURE: With full steel structure and framework, v groove wheel features excellent wear resistance, high temperLSMCCOTP NewRope Pulley,Pulley Block, U Type Stainless Steel Groove Wheel Pulley,for Heavy Duty Traction,Steel Wire Lifting Sliding Made of stainless steel materials, beautiful appearance and durableLSMCCOTP NewRope Pulley,Pulley Block, 30mm Nylon Grooved Rollers Heavy Duty Sliding Door Rollers with Stand Steel Pipe Support Rail Wheels are made of high-quality nylon material, thickened and weighted, the products are all solid and super load-bearinQANYEGN New2Pcs V Groove Wheel, Sliding Gate Roller Steel, Sliding Gate Casters for Inverted Track, Rolling Gate, Industrial Machin STURDY STEEL CONSTRUCTION: This sliding door roller is made of high quality steel for outstanding durability and longeviDORTIMATE NewDORTIMATE 4" V Groove Sliding Wheel For Reverse V Shape Rail Doors Rolling Hl2Y102 Solid Steel Wheel High Strength With 4" Diameter Solid Steel V-Groove Wheel Bolt, nut and washers included. Easy installation and replacement.LAXTO New2 V-Groove Steel Caster Wheel,Heavy Duty Rigid Wheels,Sheave Directional Track Roller,Double Bearing,Gold,for Industrial ❤️?Material: The fixed pulley is forged from carbon steel. The bracket is cold-rolled steel plate, which is wear-resistaOTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul OTBEHUWJ Newswitches Rotary Switch Changeover Switch Pulleys for Wire ,Groove Wheel Pulley V U Type Stainless Steel Groove Wheel Pul BQLZR NewBQLZR 2Pieces Shopping Cart Stair Climbing Wheels Triangle Wheel 8" Silver for Trolley Made of stainless steel and PU, strong and wear-resistant, with good anti-slip and shock-absorbing effect.