Moves large items quicker using the VXB004075BTPR. Diameter size of the caster wheel has a metric standard 75mm which is equal to 2.953" inch with imperial units. Dimensions of the caster wheel is 30mm (1.181" inch). Overall height of the wheel caster is 105mm = 4.134" inch. Mounted via a Top Plate that has the size of 93mm x 62mm and the holes distance of 45mm x 72mm. The weehl core material is Thermoplastic Rubber and has a Thermoplastic Rubber tire with a low friction Double ball bearing. Bearing in mind that every caster wheel has the load capacity of 176 lb with a Swivel type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB004075BTPR in order to get one :).