Adam Hall 37041, Swivel Castor with Heavy Duty Wheel, Ball bearing mounted, Height: 41 mm, Load capacity per set: 100 kg, Material housing: Steel, Diameter of mounting holes: 5.1 mm, Material thickness: 1.5 mm, Material wheel: Polyurethane, Diameter wheel: 35 mm, Width of tread: 25 mm, Without brake, Weight: 0.294 kg, Colour: Brown