Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB005100APVC. Diameter size of the caster wheel has a metric standard 100mm which is equal to 3.937" inch with imperial units. The thickness of the wheel is 50mm or 1.969" inch. Overall height of the wheel caster is 142mm = 5.591" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 100mm x 115mm and holes distance of 75mm x 85mm. The weehl core material is Polyurethane and has a Polyurethane tire with a low friction Double ball beaing. Bearing in mind that every caster wheel has the load capacity of 441 lb with a Swivel type. The caster temperature range = -40 to 180 F. Buy our VXB005100APVC, we wish all the best.