About this item Material: The door stopper is made of die-cast zinc, rubber foot, very heavy duty, very durable and not rusty, sturdy, can be used for a long time, the black rubber is soft, does not scratch the floor. Maximum friction: The extra-strong steel spring firmly presses the rubber pad to the floor. It hides a guarantee that is only tenuous with the automatic locking of exterior doors. Easy to use: The door opens by gently pressing the round button, the door can be released by pressing the square or square pedal. With the simple pedal switch, your door can be easily closed. This leaves your hands free for heavy or bulky boxes. Easy to assemble: The assembly was completed in a few minutes. The provided drilling template was very helpful to pre-drill the screw connection. Wide range of applications: The door stopper is suitable for doors and gates in your home, office, study, etc. The slim profile and fashionable design make your home more beautiful.