Technical innovationThe mechanical instant locking technology completely solves the problem of insufficient suction power of traditional magnetic door stoppers. Shock-absorbing springs help the doorstop absorb slamming forces and minimize noise characteristics, reducing startling without interrupting your work. Ideal for home or studio. DURABLE QUALITYThe sturdy door stop is made of high quality zinc alloy, which is strong and rust resistant. Built-in mechanical spring damping, over 70,000 tests. After hundreds of scratch tests, it is still bright and scratch-free. Adjustable heightThe telescopic rod of the door lock is adjustable, the height can be adjusted according to the height of the door gap, suitable for the maximum door gap height of 20mm. Please measure your door gap height before purchasing. 2 mounting options The robust and rust-proof door holder offers 2 mounting options. 3M self-adhesive stickers require no drilling or permanent attachment with screws. The updated hidden screw hole effectively prevents scratches caused by accidental touches and maintains a beautiful appearance. Keep Doors OpenOur door stoppers are a good solution to keep normal interior/exterior doors open. Perfect for windy areas, make sure your doors stay open in the wind to allow air to circulate in your home and say goodbye to door and wall damage caused by slamming doors.