punch-free automatic sensor door closer

Now no need to worry about forgetting your door unattended anymore!An amazing device that can automatically close all doors easily! Introducing the all-new Punch-free Automatic Sensor Door Closer.  The Punch-free Automatic Sensor Door Closer is very convenient and easy to install, no need to grind and screw, for it comes with 3 M adhesive which does not damage the wall yet delivers a firm and stable hold!  It is made with high-quality steel wire rope that has passed 50,000 times of tensile test and rebound, which guarantees quality and long-lasting service!