MATERIAL: Made of extra thick steel sheet, strong and durable SIZE: The self-locking hinge is 68 x 63 x 54mm (L x W x H), 2.5mm thick, locked at 90 degrees SELF-LOCKING DESIGN: Heavy duty construction, Each bracket can support heavy-duty furniture, weighing up to 500 lbs. BIG IDEAS FOR SMALL SPACES: Perfect for furniture table legs: folding wooden bed, large bed, iron bed, dining table, DIY platform, table and other wide applications, can also be used as invisible bracket, to help create foldable furniture to save space EASY INSTALLATION: Comes with 44 screws and installation instructions, easy to install folding brackets on furniture These self-locking hinges are made of solid steel, which can support a capacity of about 226 kg, with solid construction and self-locking extension design, these brackets are suitable for supporting heavy items and saving space, they are perfect for installing on table legs, bed legs, workbench, wall shelf and other folding constructions. Specifications: Color: Bronze Material: Steel Dimensions: 68 63 54mm (LWH) Thickness: 2.5mm Package Contents: 4 x Folding Brackets 44 x Screws