WHOLESALE Quality replacement wheels for mechanic's creeper, service carts, cabinets, stools & chairs. 2-1/2 inch-diameter x 3/4 inch width wheel; smooth, quiet & non-marking polyurethaneHeavy-duty steel axle, fender and post, rust resistant chrome finish; 360-degree Threaded-post mount, 5/16 x 5/8 inch with square base; flush cap, washer/lock-washer includedIllinois Industrial Tools