his is a high quality, heavy duty, industrial grade, caster wheel. It features a 5" centered hub length, 3/4" roller bearings, and a 4 ply tube type smooth tread tire. The wheel is painted white. This caster wheel is compatible with several brands, including Toro, John Deere, Ariens / Gravely, DIxon / Husqvarna, and Jacobson. Please check the compatibility chart before purchasing to ensure the best fit. This product is sold as a single wheel assembly.