Thousands of different kinds using our Canada based business to select from to have your office Desk/chair sliding easily right and left, install the VXB20075GPPR. Spinning on wheel that has 75mm diameter/2.953" inch. The wheel has a width of 75mm=2.953" inch. The height of the wheel caster is 100mm = 3.937" inch. Top Plate is the method of installing the caster to your equipment, dimensions are 47mm x 47mm with the holes distance of 129mm x 74mm. Low drag was achieved by a Polypropylene core on a Polypropylene tire spinning freely with a Roller bearing. Having in mind that every caster wheel has the load capacity of 88 lb with a Swivel type. Ambient temperature range is -40 to 180 F. FYI, you will need to buy the VXB20075GPPR in order to get one :).