Heavy weight capability and Durability made the wheel casters like the VXB004060PVC a must use, get your do it yourself object move around. The wheel diameter is 60mm or 2.362" inch in inches. Dimensions of the caster wheel is 30mm (1.181" inch). The Caster with the wheel from end to end is 92mm = 3.622" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 93mm x 62mm with the holes distance of 73mm x 45mm. The weehl core material is Polyvinyl Chloride and has a Polyvinyl Chloride tire with a low friction Double ball bearing. Each caster will carry the load of 132 lb and is Swivel type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB004060PVC in order to get one :).