You need 8inch-Lock-Swivel-Caster-007 to have your office desk, equipment or even a machine to easily roll them around. This wheel caster has a wheel diameter of 200mm or 7.874" inch in inches. The thickness of the wheel is 50mm or 1.969" 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 Double ball beaing design will enable the Polypropylene core and Polyurethane tire to roll easily with a core made of Polypropylene core and Polyurethane. Each caster will carry the load of 661 lb and is Swivel and Center Locking type. Temperature range = -40 to 180 F. Buy the 8inch-Lock-Swivel-Caster-007 now, just add the quantity to basket and click on Checkout.