Material: This door stopper bracket is made of steel and brass with plastic bumper, durable, sturdy and not easy to break. Easy to Install: This door stopper is small in size and light in weight, so it can be easily installed on the door and on the floor for any floor. Application: By using the door stopper you can open and close the door silently, without noise, protect the door and can effectively reduce the sound. Self-locking: The door stopper is designed to be automatic and uses super strong N38 powerful magnets with strong penetrating magnetism, which can easily and conveniently lock the door. Widely Used: The door stopper is widely applicable, suitable for home bedroom, kitchen and office, small and invisible, saving space. Specification: Material: Steel, copper. Maximum Suction Head Length: 15MM Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. 1 Piece Door Stopper