High Quality Material: The folding furniture hinge is made of iron, which is durable and wear resistant. The surface is treated with electroplated color zinc to prevent rust and wear. . Self Locking: The folding hinge has a spring activated forced lock that can be locked in the open position to ensure stability. When the table is not in use, it can be folded to get more space. . Easy to Use: Folding leg table extension brackets are very easy to use, with 90supporting feet when opened, and 0folding when closed, allowing easy and precise operation. . Easy to Install: There are multiple positioning holes evenly distributed on the surface of the self locking hinges, which is very helpful for you to install screws. . Wide Applications: Folding leg fittings are suitable for kitchens, shops, warehouses, folding wooden tables, dining tables, workshops, bathrooms, and more. .