Moves large items quicker using the VXB005150YGVCB1. And rolling on wheel that has 150mm diameter/5.906" inch. The thickness of the wheel is 50mm or 1.969" inch. Overall height of the wheel caster is 195mm = 7.677" 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. This caster wheel core material is Polypropylene core and Polyurethane and has a Polypropylene core and Polyurethane tire spinning over Double ball beaing. Each caster will carry the load of 617 lb and is Swivel and Center Brake type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB005150YGVCB1 in order to get one :).