Quiet and Shock-Absorbing: The door stopper is made of soft, shock-absorbing material, which allows for quiet operation. The hold instantly locks the door and is designed with soft, shock-absorbing material that ensures quiet operation, making it perfect for use in bedrooms, bathrooms, or any other space. Durable and Rust-Proof: The door stopper is made of high-quality zinc alloy, which has high hardness, is not easy to wear, is durable and reliable. It adopts a five-layer coating process with good abrasion and corrosion resistance, ensuring that it will not rust even after prolonged use and maintains a smooth appearance. Easy to Install: The mechanical door stopper is easy to install with 3M stickers or sturdy screws. It comes with all necessary accessories and clear instructions, and can be installed in a short time. Adjustable Height: The telescopic rod of the door stop is adjustable, the height can be adjusted according to the height of the door gap, designed for 10-20