Mounting VXB005200ATPRB1 is the Low cost solution of making a project to move around by pushing or pulling. And rolling on wheel that has 200mm diameter/7.874" inch. The wheel has a width of 50mm=1.969" inch. Overall height of the wheel caster is 240mm = 9.449" inch. Mounted via a Top Plate that has the size of 100mm x 115mm and the holes distance of 75mm x 85mm. The Double ball beaing design will enable the Polypropylene core and Thermoplastic Rubber tire to roll easily with a core made of Polypropylene core and Thermoplastic Rubber. Bearing in mind that every caster wheel has the load capacity of 661 lb with a Swivel and Center Brake type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB005200ATPRB1 in order to get one :).