Installing this Spring Hinge allows the door to automatically close without worrying about pets sneaking into the room. Strong versatility: Suitable for standard doors in any location, including closet doors, cabinet doors, bedroom closet doors, bathroom closet doors, and storage room doors. Easy to install: Simply extend it, with the spring part surrounding the hinge, to complete the installation. Safe and sturdy: Durable, with a rubber sleeve at the stop, no need to worry about damage to walls or doors. One package includes 8PCS Spring Hinges., Manufacturer: Young Wolf