Quality Stainless Steel Hinge Pin Door Closers Made from durable stainless steel that resists rust and maintains strength over time Provides tension and balance, ensuring smooth door operation Helps reduce wear from frequent opening and closing, extending the life of your doors Automatic Closing Function Designed with a universal butterfly spring mechanism that closes doors automatically Prevents situations where doors are left open, improving privacy and maintaining Stops pets from entering or exiting without permission, adding convenience and security to your home Easy, Drill Installation Simple setup with no need for drilling or door modifications Close the door, lift the hinge pin, adjust the spring to create tension, then release for it to unfold naturally Eliminates installation damage and minimizes setup time MultiDoor Coverage Includes four spring hinge door closers, ideal for multiple door installations for home use, such as bedroom doors, kitchen doors, and basement entries Suitable for commercial settings, including office areas, storerooms, and restricted access zones Practical Applications 1. Residential Homes – Keep doors properly closed to enhance energy efficiency, maintain room temperature, and preserve privacy. 2. Office Environments – Ensure controlled access between workspaces and secure areas without constant manual supervision. 3. Pet Management – Restrict access to certain rooms to prevent pets from causing damage or entering unsafe areas. Specifications Material: quality stainless steel Design: Universal butterfly spring hinge pin closer Quantity: 4 closers per package Compatibility: Fits most standard interior doors Installation: Tool, drill setup This set of hinge pin door closers offers a reliable and practical solution for automatic door closure in both residential and commercial spaces, combining durability, ease of use, and multidoor coverage for maximum convenience.