DieHard DH20024 wheel chocks are intended for the use on cars, SUVs, vans and light-duty trailers. They are constructed with light-weight steel for long term durability and black paint for dirt resistance and provides anti-rust protection. Includes 1 pair of wheel chocks. The product dimension is 125mm x 145mm. Product Features:Durable steel constructionBox contents 2 steel wheel chocksPrevent your vehicles from rolling and provide a great safety precaution