1.High quality material: The automatic door closer adopts high quality ABS plastic shell, antioxidant, anti-corrosion, anti-rust, stable, wear-resistant, weatherproof, rainproof, hydraulic high temperature, quiet and long life. 2. Quick Installation: The automatic door closers can be installed with the 3M adhesive, which is very sticky and not easy to fall off, easy to install, very strong and does not damage the wall. Only suitable for marble, glass and other smooth surfaces, stronger after 24 hours of installation. 3. Automatic Door Closer: The automatic door closer can automatically close most doors. Avoid standing and opening doors repeatedly when studying and working to improve learning and work efficiency, prevent flies from entering the room and cooking fumes from enter the living room. 4.800G Super Tensile Strength: The 1.2m high-quality steel cable has passed the test of tensile strength and elasticity several times. Strong tensile strength, not easy to break. Super strong 800G tensile strength to avoid panic caused by forgetting to close the door and keep a sense of security. 5.Wide range of applications: automatic door closers are suitable to most doors, such as doors with slightly greater closing force, left and right doors, wood and metal doors, residential and commercial doors, interior and exterior door closers, fire doors. Ideal for homes, small offices, hotels, dorms, classrooms and stores.