MATERIAL: These self-locking hinges are made of extra thick sheet steel, strong and durableSIZE: The self-locking hinge is 68 x 63 x 54mm (L x W x H), 2.5mm thick, locked at 90 degreesSELF-LOCKING DESIGN : With sturdy construction, each self-locking hinge can support heavy-duty furniture, weighing up to 500 pounds GREAT IDEAS FOR SMALL SPACES: These self-locking hinges are 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 an invisible support, to help create foldable furniture to save spaceEASY INSTALLATION: Comes with 20 screws and a installation instructions, self-locking folding hinges easy to install on furniture These 90 self-locking hinges are made of solid steel, which can support a capacity of about 500 lbs, with solid construction and self-locking extension design, these brackets fit To support heavy items and save space, they are perfect for installing on table legs, bed legs, workbench, wall shelf and other folding constructions.Specifications:Color: BronzeMaterial: SteelDimensions: 68 63 54mm (LWH) Thickness: 2.5mm Package Contents: 2 x Self-Locking Hinges 9020 x Screws