【High-quality material】Our automatic door closer is made of high-quality ABS plastic shell, anti-oxidation, anti-corrosion, anti-rust, silent and safe locking, long service life. It can effectively avoid the panic caused by forgetting the door and give you a sufficient sense of security. Easy to use: The installation method is simple and easy to use, the force can be adjusted, and the opening and closing are smooth. Door closers bring convenience and safety to your life, protecting your doors and locks. Simple to use and suitable for a wide range of applications. Thank you very much for shopping in our store. I wish you a happy life!