- Light door closer is made of Zinc alloy , Spring operation, totally automatic closing, gives you a easy and safe life, protects your door and lock. EASY DIY PROJECT Thanks to these safety spring door closers, your next to-do is quick and easy. Use these door closers to convert hinged doors to self-closing ones. EASY INSTALLATION With a closer and plastic slide plate being surface mounted, installation is a breeze. This spring door closer can be used on doors up to 150 lbs and can be used on both left and right-handed doors. Easily adjust the tension on this safety spring door closer. - Antioxidative, anticorrosive, rustless, steady, abrasion resistant, weatherproof, quiet and safe closer, Quality Warranty: Over 500,000 times open and close testing, at least 96 hours salt spray corrosion test, inspection. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.