Self closing door hinges are made with tension springs that help reduce heat loss and improve security when your home or commercial project requires that doors close automatically behind you. Design House self closing hinges have adjustable tension so you can control precisely how quickly the door closes based on the door's size and weight. These heavy duty, easy to install 4-inch by 4-inch hinges come in standard 5/8-inch radius and rounded corners. The satin chrome finish and heavy duty steel construction provide exceptional durability and strength for both indoor and outdoor applications, especially doors to garages or workshops. A handy 2-pack of hinges is the right number for exterior doors to ensure a reliable and consistent self-closing action, while maintaining door alignment, enhancing security, and supporting energy efficiency by preventing gaps.