Installing this Spring Hinge allows the door to automatically close without worrying about pets sneaking into the room.It is very easy for this door springs to close door. Spring closer turns lightweight interior doors into self-closing doors Strong versatility of the door closers for home: Suitable for standard doors in any location, including closet doors, cabinet doors, bedroom closet doors, bathroom closet doors, and storage room doors,soft door closer.Nice chrome finish, Keeps door closed, Ideal for closet doors, Kitchen cabinet Doors, Bedroom closet doors, bathroom closet doors, Pantry doors etc Easy to install This automatic door closer hinge: Simply extend it, with the spring part surrounding the hinge, to complete the installation.door closer hinge self closing Safe for this screen door spring door closer: with a rubber sleeve at the stop, no need to worry about damage to walls or doors One package includes 6pcs Spring Hinges.automatic sliding door opener Install Method: Close the Door,Pull the hinge pin up enough to put the spring on the pin with tension 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.