Heavy weight capability and Durability made the wheel casters like the VXB0045075PPF a must use, get your do it yourself object move around. The wheel diameter is 75mm or 2.953" inch in inches. Dimensions of the caster wheel is 40mm (1.575" inch). The caster dimensions heightwise is 195mm/7.677" 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. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 441 lb with a Swivel type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB0045075PPF in order to get one :).