About this item 【Automatic Door Closer Set】--- You will get 2pcs automatic door closer set, including 2pcs automatic door closer, 2pcs plastic hooks and 2pcs heavy duty double-sided tape, 8pcs stainless steel screws. The wire rope contracts according to the principle of turbine force, thereby pulling the open door back and closing it. Suitable for homes, small offices, hotels, dormitories, classrooms and shops. [Super Tensile Strength]---CTDMJ Super tensile strength 1200g, 1.2m high quality steel wire rope, has passed 80,000 times of tension and rebound tests, durable. Strong tensile strength, not easy to break. This bedroom door closer has a super tear strength of 1200 grams, which can help you close doors and windows in time. Or it can be used to frequently open and close doors without manual operation. 【High-quality materials】--- These automatic door closers are made of high-quality ABS plastic and thick stainless steel cables, anti-corrosion, anti-rust, anti-oxidation, stable,