Minimization of possible untoward effects on operator by installing VXB0045075PU just ask your operator to push and pull, but not carry. And rolling on wheel that has 75mm diameter/2.953" inch. The thickness of the wheel is 40mm or 1.575" inch. The caster dimensions heightwise is 155mm/6.102" 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. The weehl core material is Polyurethane and Polypropylene and has a Polyurethane and Polypropylene tire with a low friction ball bearing. Bearing in mind that every caster wheel has the load capacity of 441 lb with a Swivel type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB0045075PU in order to get one :).