Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB007125PVCB. And rolling on wheel that has 125mm diameter/4.921" inch. The thickness of the wheel is 27mm or 1.063" inch. Overall height of the wheel caster is 155mm = 6.102" inch. Mounted via a Top Plate that has the size of 76mm x 76mm and the holes distance of 57mm x 57mm. The Plain bearing design will enable the Polyvinyl Chloride tire to roll easily with a core made of Polyvinyl Chloride. Bearing in mind that every caster wheel has the load capacity of 132 lb with a Swivel and Upper Brake type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB007125PVCB in order to get one :).