【Door Closer Punch Free】You will receive 2 x Automatic Door Closer, 2 x Strong Double-Sided Adhesive and 2 x Plastic Hooks, avoid getting up and opening the door repeatedly, Ideal for home, dormitories, companies, hotels and classrooms【Super Tensile Strength】The high quality double steel wire rope with a diameter of 1.2mm has passed 12000 times pull and rebound test, with strong 800g pull, the tensile strength is strong and not easy to break【Quick Installation】The punch-free automatic sensor door closer is installed with non-porous adhesive (installation and use, use after 24 hours, strong adhesion).After sticking the door closer, the viscosity is very strong and not easy to fall off, easy to install and strong high and will not damage the walls【Useful device】 The door closer effectively closes your doors to save you valuable heating costs and to be able to heat rooms effectively.prevent mosquitoes, flies, domestic cats and dogs from entering the room, and prevent kitchen fumes from entering the living room【Wide range of applications】Automatic door closers are suitable for most doors.Such as strong closing force doors, left and right doors, wooden doors and screen doors, sliding doors, invisible doors, security doors, aluminum alloy glass doors, wrought iron doors, residential and commercial doors, exterior/interior doors and fire doors.Ideal for homes, dorm rooms, businesses, hotels, classrooms and home offices