Because of door switching on and off frequently, the paint of the door check surface falls off and internal material exposed in the air.When it rains, it causes ugly rust.Time goes on, rust will be more serious and then it will reduce the safety of the vehicle when driving. In order to solve the problem, the Door Check Cover appears.It will protect the door shaft from erosion damage of rust, rain and dust. 1) Material: high quality ABS soft plastic. 2) Compact, practical and beautiful. 3) Perfect fit, easy installation. 4) Waterproof and Rustproof. Make your car clean and safe.