Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB004125TPRB. The wheel diameter is 125mm or 4.921" inch in inches. The thickness of the wheel is 30mm or 1.181" inch. The caster dimensions heightwise is 155mm/6.102" inch. Mounted via a Top Plate that has the size of 93mm x 62mm and the holes distance of 45mm x 72mm. This caster wheel core material is Thermoplastic Rubber and has a Thermoplastic Rubber tire spinning over Double ball bearing. Bearing in mind that every caster wheel has the load capacity of 220 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Buy the VXB004125TPRB now, just add the quantity to basket and click on Checkout.