HEAVY-DUTY STRUCTURE - Made of thick steel plate with bronze coating on the surface, the folding bracket is strong, durable, scratch-resistant, and not easy to rust. The product has strong loading capacity and excellent durability, and can hold up to 500 lbs. SELF-LOCK DESIGN - The foldable support bracket is designed with a spring-activated locking function. When you use the table or workbench, the spring will automatically lock in the open position to ensure stability and safety. When you are not using a table or workbench, you just need to press the latch and fold it down to save more space. EASY TO USE - The Table Legs Foldable Hinges come with mounting screws, allowing you to install it quickly and easily. The folding brackets are produced by professional equipment and exquisite workmanship, giving them a sturdy structure, smooth and burr-free surface, and classic appearance. MULTIFUNCTIONAL USES - The lock extension support is very suitable for DIY tables or beds, extended tables or bed legs, folding workbenches and so on. They can be widely used in warehouses, kitchens, grocery stores, boats, garages, RVs, dining tables, wooden beds and more. MONEYBACK GUARANTEE - We promises to provide you with a refund if you find any issue with our self-lock hinge in 30 days, so that you can rest assured that you make the right choice. If you have any questions regarding our folding leg hinge, please feel free to contact us, and we will be make sure to provide the best service.