This product is a set of two replacement rear drive wheel assemblies for Toro lawn mowers. The wheels are 8 inches in diameter and are compatible with Toro models 137-4835 and 119-3822. The product is made of plastic, metal, and rubber materials and weighs 3.69 lbs. It is designed to be used with gas-powered lawn mowers. The package dimensions are 8.62 x 8.58 x 5.2 inches and the color of the wheels is black.