Material : Ball caster wheels are made of PP material and consist of heavy duty steel construction (include 4 mounting sockets) Use antique gold finish casters wheel to DIY or repair your own furniture, enjoying DIY pleasure time With surface and mute casters help you hardwood floor or carpet against scratch Dimension and Loading Capacity : Each caster carry up to 55 lbs capacity . With 2inch diameter ball, 0.31 inch x 1.5 inch/8mm x 38mm (W x L) Multi-application: Perfect for office chairs, sofas, cabinets , ottoman, coffee table, stands, shoe bins, toy bins and other furniture Colour: Green Bronze Material: PP Size: Wheel Diameter 50mm, Circlip Size: 8 x 38mm Package Contents: 4 x casters 4 x Valve Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.