Spring The interior of the door stopper is made of industrial spring which has excellent elasticity and reduces the noise of door operation noises.Safety The door stopper is made of steel Al stainless steel, strong, tough and durable. It has good properties such as stability. The operation is stable, precise and reliable.Stability and magnetThis door stopper is designed with a triangle-shaped base, which improves the stability and shock resistance, as well as the performance of the door stopper. The doors are protected.Durability & RemovableSince the stopper is polished, it is not easy to rust even if it is attached to the toilet. The lower part of the triangular base is designed as an abduction snowflake, so it is easy to use wherever you are.