Heavy weight capability and Durability made the wheel casters like the VXB20060CPUT2B a must use, get your do it yourself object move around. The wheel diameter is 60mm or 2.362" inch in inches. The wheel has a width of 60mm=2.362" inch. The caster dimensions heightwise is 48mm/1.890" inch. is the method of installing the caster to your equipment, here are the dimensions 38mm x 38mm with the holes distance of 129mm x 74mm. The weehl core material is Nylon and Polyvinyl Chloride and has a Nylon and Polyvinyl Chloride tire with a low friction Roller bearing. Bearing in mind that every caster wheel has the load capacity of 77 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Very important notice, you need to buy the VXB20060CPUT2B in order to get one :).