Specification: Product name: automatic door closer Colour: Black Application: all kinds of doors that cannot be closed Core: Constant Force Turbine Clockwork Material: shell ABS plastic, steel rope 304 rubber coating Rope length: 1.2m Steel rope thickness: 1.1mm Aperture: 4.mm Product size: 63.3*63.3*17.4mm Installation method: punching/free punching 1、 High‑quality multifunctional automatic door closer, which automatically closes all doors. 2、 Very suitable for home use, light office use, shed, ranch, home office and other scenes. 3、 Fast installation in 10 seconds, no holes when the glue is installed, firmness and no damage to the wall, the load-bearing capacity can reach more than 8 kg, easy to install and high temperature resistance. 4、 The high-quality stainless steel wire rope has passed 10,000 times of tensile test and rebound test, and has a strong tensile force. 5、 It is widely used for doors or doors with strong closing force. Doors that can be opened left and right, wooden and metal doors, residential and commercial doors, exterior/internal door closers, fire doors, etc. 6、6. Anti-oxidation, anti-corrosion, non-rusting, stable, wear-resistant and safe closing device.