Punch-free Automatic Sensor Door Closer Self Closing Off for Home Office Doors Punch-free Automatic Sensor Door Closer Self Closing Off for Home Office Doors Description: 100% high quality. Multifunctional automatic door closer, automatically close all doors. Very suitable for home use, light office use, shed, ranch and home office, affordable! Features: Quick install. The glue is installed without holes, is firm and does not damage the wall, easy to install, and high temperature resistance. The high-quality P12 steel wire rope has passed 50,000 tensile tests and rebound tests and has a strong tensile force.800G pull. Suitable for doors or doors with stronger closing force. Doors that can be opened left and right, wooden and metal doors, residential and commercial doors, exterior/internal door closers, fire doors. Characteristic：Anti-oxidation, anti-corrosion, no rust, stable, wear-resistant, weatherproof, hydraulic, quiet and safe cutting device. Size: 63*63*18MM Package Includes: 1×Automatic door closer 1×Adhesive paper 1×Spanner 1×Transparent hooks