Strong and : Heavy duty door stopper made from stainless steel electroplating process and rubber, metal door stopper very nice finish, waterproof and rustproof, strong and . a sturdy product and strong enough for any sturdy door. Grip and Anti-Slip: Door stops for the bottom of the door won't slide around because there is rubber on the top and bottom of this powerful little wedge. The rubber provides a firm grip on the floor and door without moving. The door won't move even in gusts of wind. Adjustable: Spring loaded door stop, the spring loaded door stop can adjust the height and will fit any door gap from 1/2 inch to 3 inches. Most door stops are too short and the door slides easily over them, but this tall enough adjustable door stop works perfectly. Great Door Stop: Large door stop suitable for any heavy commercial swing door, metal door, double doors, security door, self-closing swing door and balcony doors with more space underneath. It is also suitable for glass doors, carpets,