HIGH QUALITY MATERIAL: Our automatic door closers are made of high-quality ABS plastic shell, which has anti-oxidation, anti-corrosion, anti-abrasion, high temperature resistance and long service life. QUICK INSTALLATION: The non-punch automatic door closer uses non-porous adhesive installation method, it can be easily attached to any door within 2 minutes without drilling or screwing (installation and use, use after 24 hours, strong adhesion). FEATURES: The door closer closes your doors effectively in order to save you valuable heating costs and to be able to heat rooms effectively. TRAINING: 800g The high-quality 1m steel wire rope has passed the tensile and elasticity tests many times. It has strong pulling force and is not easy to break to avoid panic because forgetting to close the door and get a safer feeling time. APPLICATION: Sensor door closer suitable for doors or doors with a slightly stronger closing force. Doors that open to the left and right, wooden and metal doors, residential and commercial doors, exterior interior door closers, fire doors. Technical data: Material: Plastic, stainless steel wire Tensile force: 800g Dimensions: 6.3 x 6.3 x 1.6 cm/2.48 x 2.48 x 0.63 inch Steel wire length: 120 cm/39.3 inch Package Contents: 1 x black automatic door closer1 x white automatic door closer