Moves large items quicker using the VXB011100SSPUF. And rolling on wheel that has 100mm diameter/3.937" inch. The wheel has a width of 50mm=1.969" inch. The caster dimensions heightwise is 142mm/5.591" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 100mm x 115mm with the holes distance of 75mm x 85mm. The weehl core material is Stainless steel fork and Polyurethane and has a Stainless steel fork and Polyurethane tire with a low friction Double ball beaing. Each caster will carry the load of 441 lb and is Fixed type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB011100SSPUF in order to get one :).