0011Versatile Self-Locking Hinge: You can use this 90 degree self-locking hinge for various DIY projects such as tables or beds, or to support workbenches or expand folding tables. It allows you to place them on the legs of the bed or on the table and change the height and angle as you like. 0011Return to 0 degree folding state: This self-locking hinge can fold back to 0 degrees when not in use, making it perfect for places where space is limited. It has flexible applications for various furniture and projects. You can easily use it by gently pressing the spring-loaded opening button to unlock the 90 degree angle. ⇀Thickened steel plate: This 90 degree self-locking hinge can be used for various furniture such as tables, beds, shelves and cabinets. It has a foldable bracket that allows you to save space and change the shape of your furniture. Riveted connections make it not easy to disperse, and the thickened steel plate with galvanized coating makes it rust-proof, durable and sturdy.