Easy to use: automatic induction door closer without perforation, glue installation without holes, good firmness, no damage to the wall, easy installation, high temperature resistance. Automatic closing of all doors: suitable for doors or doors with stronger closing force. Left and right doors, wood and metal doors, residential and commercial doors, exterior/interior door closers, fire doors. Note: The door closer is not suitable for doors with carpet or excessive friction. The service life of 800g is about 6000 times: the thicker the spring, the greater the resistance, the greater the tension 800g, the stronger the tension. Box contents: 1 closure without perforation, with steel cable, 1 adhesive hook, 4 screws. The two installation methods guarantee the stability of the door closer, do not damage the wall, and are easy to install. Features: anti-oxidation, anti-corrosion, anti-rust, stability, wear resistance, weather resistance, hydraulic pressure, silent, safe and reusable. Color:White Specification Material: ABS housing + steel cable Size (L x W x H): about 6.3 x 6.3 x 1.6 cm Length of the cord: approximately 1.2 m Diameter of the cord: 1.2 mm Rally range: 800g Weight: 130g Product List 2*800g Pull Force Door Closer Automatic door closer installs quickly without drilling 3M glue, it is firm and does not damage the wall, easy install, and withstands high temperatures. 1200g Enhanced Pull: Suitable for heavier doors, such as exterior iron doors, anti-theft doors, windows, heavy sliding doors, etc.