Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB0045125PUF. The wheel diameter is 125mm or 4.921" inch in inches. The thickness of the wheel is 40mm or 1.575" inch. The caster dimensions heightwise is 165mm/6.496" inch. Mounted via a Top Plate that has the size of 110mm x 100mm x 4mm fork:3.5mm and the holes distance of 85mm x 75mm. Low drag was achieved by a Polyurethane and Polypropylene core on a Polyurethane and Polypropylene tire spinning freely with a ball bearing. Each caster will carry the load of 661 lb and is Fixed type. Temperature range is -40 to 180 F. Buy the VXB0045125PUF now, just add the quantity to basket and click on Checkout.