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 30 kg, and easily adjust the tension on this safety spring door closer. High Quality: Light door closer is made of Zinc alloy , Spring operation, totally automatic closing, automatic door closers gives you a easy and safe life, protects your door and lock. Keep Quiet: Automatic closing and latching, maintaining quiet and security. During the break, you don’t have to worry about your kids escaping from home or your pet dogs, cats running into your room door closer hinge self closing . Size: automatic door closer for home 6.5 x 4.9 x 1.2 inches, suitable for door weight for 20-30 kg, door width 1000 mm, universal design, right or left wing door, ideal for home, office, hotel room doors. Box Contents: after purchase you will receive a screen door closer, 4 screws, a adjustment rod and a seal for the protective door. 1