1.Automatic closing and latching, maintaining quiet and security. 2.Attach your closer in a left or right configuration to any common door frame and jamb material. Use a complete auto door closer set that accommodates wood, aluminum, & steel 3.The closer arm of the safety spring closer can swing a full 180 degrees. Use these door closers to convert hinged door to self-closing door, you can easily and quickly operate. 4.Adjustable fence door spring is suitable for outdoor vinyl door, agricultural fences, garden fences, shed, lawns, shacks, orchards, terraces, pools, square wood post and various wooden door. 5.Our hydraulic door closer is built to close consistently and securely. Plus, our auto door closer provides smooth door closure while preventing unwanted slamming.