800G Sweater: The premium steel cable has passed 50,000 times pull test and rebound test with 800G strong pull, with strong pulling force. APPLICABLE: Suitable for doors or gates with stronger closing force. For example: left and right doors, wooden and metal doors, residential and commercial doors, exterior/interior door closers, fire doors, etc. Please note: door closers are not suitable for doors with carpets or excessive friction. PUNCH-FREE: Automatic punch-free door closer, easy to install and use. The glue installation has no holes, is firm and does not damage the wall, is easy to install, and is resistant to high temperatures. The attached hex key can adjust the size of the metal buckle and fix it. DURABLE: anti-oxidation, anti-corrosion, stable, wear-resistant, weather-resistant, hydraulic and corrosion-resistant closing device. security. Feature: 1. The glue is installed without holes, is firm and will not damage the wall, easy to install and high temperature resistance. 2. This product is an anti-oxidation, anti-corrosion, rust-free, stable and wear-resistant, quiet and safe cutting device. 3. The high-quality steel cable has passed 50,000 times of tensile and rebound tests and has strong tensile strength. 4. Small size, easy to carry and store, convenient to use and with good performance. 5. Wide range of applications, can be used for company office doors, house doors, etc. Specification: Item Type: Slbrillre Automatic Door Closer Sensor Material: ABS, steel rope Purpose: Fixed on the door, closes the door automatically Package list: 2 x closer