Premium Quality: durable solid steel with a sleek satin chrome finish, these 4.5" square commercial spring hinges are designed to support door thicknesses of 2" to 2 1/4", ensuring reliable performance and longevity. Self-Closing Mechanism: Equipped with an adjustable tension system, these spring hinges smoothly and automatically close doors, enhancing convenience and safety in commercial settings. Easy Installation: Each kit includes two spring hinges, matching screws, tension pins, and a hex wrench, everything you will need for a hassle-free door hinge installation on left and right-hand doors. Versatile Application: Ideal for a wide range of commercial environments and doors, these self closing silver door hinges are engineered for heavy use in offices, schools, hospitals, and other public buildings. Trusted Brand: Hinge Outlet is renowned for its commitment to high-quality hinges, offering extensive expertise and a vast selection for both residential and commercial applications.