Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB005200GBLB1. Diameter size of the caster wheel has a metric standard 200mm which is equal to 7.874" inch with imperial units. The wheel has a width of 53mm=2.087" inch. The Caster with the wheel from end to end 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 weehl core material is Polypropylene core and Rubber and has a Polypropylene core and Rubber tire with a low friction Double ball beaing. Each caster will carry the load of 617 lb and is Swivel and Center Brake type. The caster temperature range = -40 to 180 F. Buy the VXB005200GBLB1 now, just add the quantity to basket and click on Checkout.