Product Name: Hinge Rebounder What you get: 4 stainless steel spring hinges (including mounting screws). Premium Quality: The self-closing hinges are made of high quality 304 stainless steel, rust and corrosion resistant. It can be used for a long time. Easy to install: With mounting screws, easy to install. The hinge can be closed automatically to better meet your needs and requirements Widely used: Quickly remove the cover or lid of the application. Door hinges are suitable for cabinet doors and closed doors.