Material: These furniture folding hinges made of extra thick sheet steel; The reinforcing rib structure has strong load bearing and tensile strength. Each bracket is capable of supporting heavy furniture. Size: 6.8 x 6.3 x 5 /2.68 2.4 2 (L x W x H), thickness 2.5mm/0.098 , 90 degree open angle when the bracket is in the up position, and the bayonet will automatically lock when it reaches 90 degree. Unique Auto-lock Design: Sturdy hardware design. The maximum hinge angle is 90 degrees and the bayonet locks automatically when it reaches 90 degrees. With solid construction, loads up to 500 lbs. works well and stable. Easy to Install: The included accessories, 40 screws included make it easy to install the folding brackets on furniture and only takes a few minutes Occasion: Suitable for wooden folding furniture table legs , large bed, iron bed, dining table, stage, iron frame DIY platform, table and other wide applications, can also be used as a simple invisible bracket.