4pcs Automatic Door Closer Without Drilling for Sliding Doors, With Drawstring & 1000g Pull Force, Viewing Window1.2m steel wire rope has passed the tensile and elasticity tests many times. It has pulling force and is not easy to break to avoid panic from forgetting to close the door.Our automatic door closers are made of ABS plastic shell, resistant to oxidation, corrosion, abrasion, weather and rain, high temperature resistance and long service life.Compatible with most types of doors. Our automatic door closers are compatible with the most doors, e.g. Doors with a stronger closing force, doors that can be opened left and right, wooden and metal doors, residential and commercial doors, exterior / interior doors, fireproof door.Quick Installation. The punch-free automatic sensor door closer is installed with non-porous adhesive, adhesion and will not damage the wall. Install and use, use after 24 hours.Wide range of applications. Multi-functional automatic door closer, automatically closing most doors. Very compatible with families, small offices, hotels, dormitories, classrooms, businesses, sheds, classes and home offices.This kind of automatic door closer can help you close doors and windows in time to reduce the intrusion of mosquitoes and mice, and close the door in time to prevent the air conditioner from leaking in summer or the room heat loss in winter, which can save electricity. Very compatible with family, small office, shed, ranch and home office.Specifications:Material: Plastic, stainless steel wireTensile force: 1000 gDimensions: 6.3 x 6.3 x 1.6 cm/2.48 x 2.48 x 0.63 inchSteel wire length: 100 cm/39.3 inchPackage includes:2 x black automatic door closer2 x white automatic door closer