
1. Made of durable aluminum alloy to prevent rust, improve wear resistance, and increase corrosion resistance for a longer service life. 2. Effortless installation for left and right doors - simply flip the door closer 180°. 3. The robust automatic door closer ensures a smooth closing motion, reduces noise interference, protects the door from impact, and provides a quiet and secure environment. 4. Versatile interior door closer, suitable for metal doors, fire doors, wooden doors, civil doors, and commercial doors.