The thickened material is visible, firm and robust, safe and stable Gently press the spring opening button to unlock and return to the 0 degrees folding state If you need to unlock it, you can gently press the spring button to unlock it easily 90 degree multifunctional selflocking folding table leg accessories, 0degree folding state Folding hinges are very suitable for building wooden tables and have locking legs (easy to bend when unlocked)Folding table legs big ideas in a small space: ideal for spaceconstrained and/or flexible applicationsPlace them on legs or tables, and use table leg hinges for DIY tables or beds, folding table items, folding table extensions, etc.With spring activated "forced lock", onekey control locks in the open position to ensure a stable position When you are not using a desk or workbench, just click the latch and fold down to get more space.Made of thicken steel plate, the foldable support bracket form a sturdy structure. It adopts riveted connection and is not easy to fall apart. The galvanized coating on the surface makes it rustresistant, allowing it to last a long time.Designed with spring locking mechanism, this lock extension support works great. If you try to open the table, the springs automatically lock in the open position, providing extra security and stability. When the table is not in use, just press the latch and fold it down to save more space.