KeepClose - Punch-free Automatic Sensor Door Closer

Make your doors close automatically without punching a hole or complicated installation. KeepClose - Punch-free Automatic Sensor Door Closer is the neatest and easiest to install door closer. It uses strong hold 3M tape to secure its place without leaving any mark or hole when removed.  KeepClose uses spring back and steel rope mechanism to pull any door close. It can be used on any type of door openings including sliding doors. Small design yet with a strong pulling force that able to pull even a solid and metal door. FEATURES: Multifunctional - Very suitable for home, light office use, shed, ranch, and home office Quick Install - Hole-free 3M glue installation, firm and does not damage the wall, install in seconds 50,000 Tests - The high-quality P12 steel wire rope has passed 50,000 times of tensile test and rebound test, with strong tensile force. 800G Pull - 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. Durable - Anti-oxidation, anti-corrosion, stable, wear-resistant, weather-proof, hydraulic, quiet, safe shut-off device.