Punch-Free Automatic Sensor Door Closer Description :- When studying and working, avoid repeatedly getting up and opening the door to improve the efficiency of study and work; it can prevent mosquitoes and flies from entering the room, and mice will not have the opportunity to enter the room to steal things.  Multifunctional automatic door closer, automatically close all doors.  Hole-free adhesive installation, good firmness, does not damage the wall, easy installation, high-temperature resistance.   Anti-oxidation, anti-corrosion, no rust, stable, wear-resistant, weatherproof, hydraulics, quiet, safe shut-off device.   The high-quality steel wire rope has passed 50,000 times of tensile test and rebound test, with strong tensile force.   Very suitable for home use, light office use, shed, ranch, and home office!   Suitable for doors, or doors with a slightly stronger closing force. Doors that open left and right, wooden and metal doors, residential and commercial doors, exterior/inner door closers, fire doors.   Physical Dimension :- Volu. Weight (Gm) :- 72 Product Weight (Gm) :- 80 Ship Weight (Gm) :- 80 Length (Cm) :- 11 Breadth (Cm) :- 7 Height (Cm) :- 4