Technical Innovation: Mechanical instant locking technology completely solves the problem of insufficient suction of traditional magnetic doorstops. The damping springs help the doorstop absorb slamming forces and minimize noise characteristics, helping to reduce jolts without interrupting your work. Ideal for home or studio use. Durable Quality: The heavy-duty door stop is made of high-quality zinc alloy, which is strong and rust-resistant. Size: Width 6.1cm, Height 4.8cm Adjustable Height: The telescopic rod of the door catch is adjustable, the height can be adjusted according to the height of the door gap, suitable for the maximum height of the door gap of 20mm, please measure the height of your door gap before purchasing. 2 Ways to Install: The sturdy and rust-proof door holder offers 2 ways to install. 3M stickers do not require drilling or permanent mounting with screws. The updated hidden screw hole effectively prevents scratches caused by accidental touches and maintains a beautiful appearance. Keep Doors Open Our door stops are a good solution for keeping interior/exterior doors open. Perfect for windy areas, ensure your doors stay open in the wind to keep air circulating in your home and say goodbye to door and wall damage caused by slamming doors.