Retail Shopping Backpack On Wheels Brake Swivel Caster, 1.5-Inch, Black, 4-360 Swivel Type, Threaded Tang, Ball Bearing, Lightweight, Industrial Brake Design Wheels. Used widely for furniture, hand carts, shopping carts, s and kinds of industrial equipment. Double Ball Bearings Swivel Head Wheel Type: Double Ball Roller Bearings, Polyurethane MaterialThreaded M8 Screw MountingIdeal for a huge range of applications from DIY to industrial applications (home, schools, shops, hospitals)Product Name: castersMaterial: Polyurethane, MetalColor: BlackThreaded Diameter: 8mm(M8)Thread Length: 25mm/1inchWheel Diameter: 40mm/1.5inchTop Diameter: 35mm/1.4inchOverall Size: 90x80x35mm/3.5x3.1x1.4inch(LWT)Weight: 707g Package Contents: 2 x Brake Casters2 x Swivel CasterOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.