4. 【50,000 Tests 】High-quality steel cable passed 50,000 times tensile test and rebound test, with strong pulling force. 2. Anti-rust, anti-corrosion, rust-free, stable, wear-resistant, weather-resistant, hydraulic, quiet and safe device. 1. Multifunctional automatic door closer, automatically closes all doors. Very suitable for home use, light office, shed, and home office. 3. Quick installation: adhesive installation without holes, good firmness, no damage to the wall, easy installation, high temperature resistance. 5. 800G handle: suitable for doors or doors with a force of slightly . Left and right opening doors, wooden and metal doors, residential and commercial doors, exterior/interior door closers, fire doors., Weight: 0.12676580065 Pounds, Manufacturer: Rtxbvg