Product name: automatic door closerMaterial: ABS wire ropeSize:6.3x6.3x1.8cm/2.4x2.4x0.6 inchTensile force: 1000gFunction:[Punch free automatic pull rope door closer] When learning and working, avoid repeatedly getting up to open the door, and improve learning and working efficiency; When using the kitchen, it can prevent lampblack from entering the living room, which is widely used.[High quality] The automatic door closer is made of high-quality ABS material, which is anti-oxidation, anti-corrosion, rust free, stable, wear-resistant, weather proof, hydraulic, quiet and safe.[Easy to use] No punching automatic induction door closer, no hole glue installation, good firmness, no damage to the wall, easy installation, high temperature resistance.[Strong tension] The high-quality steel wire rope with a diameter of 1.2mm has passed 50000 tensile tests and rebound tests under 1000G strong tension. The steel wire rope has strong tension and good extensibility, which is very durable and has a long service life.[Multi function door closer] It is applicable to doors with strong closing force. Left and right doors, wooden and metal doors, residential and commercial doors, external/internal door closers, fire doors. Please note that door closers are not suitable for carpets or doors with excessive friction.Packing list:2* automatic door closer2* Transparent hook2* 3M glue2*spanner