Make your life easier, have big objects easier to Maneuver using the VXB0045125PPF Wheel Caster. And rolling on wheel that has 125mm diameter/4.921" inch. The thickness of the wheel is 40mm or 1.575" inch. The Caster with the wheel from end to end is 165mm = 6.496" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 110mm x 100mm x 4mm fork:3.5mm and holes distance of 85mm x 75mm. This caster wheel core material is Polypropylene and has a Polypropylene tire spinning over ball bearing. Each caster will carry the load of 661 lb and is Fixed type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB0045125PPF in order to get one :).