2 mounting options: Glue or drill. 3M sticker provides extra strength and durability. No drilling required. You can also install it with screws. Excellent quality: Galvanized metal magnetic plug. Brushed stainless steel finish, super anti-corrosion and anti-rust. Adjustable Height: You can adjust the height flexibly up to 16mm. Powerful Magnets on Door Stops: It is triggered by gently pulling the door, preventing the door from closing abruptly. 5mm Ultra Thin Base: Protect yourself from obstacles. We are a professional designer and manufacturer of household items. The products focus on modern design, quality of life and elegance.