Application: Folding spring hinge is suitable for upper lift hardware bracket, suitable for folding bed, folding sofa, folding sofa, lift door cabinet door. Premium Material: 80 degrees shear hinge is made of premium cold rolled steel, high strength hinge. Strong Load Bearing: Folding spring hinge has eccellent oxidation function and strong load bearing capacity, and is removable shelf hinge. Pack of 2: Hinge has a high spring strength and an opening angle of 80 degrees. Each package includes left spring hinge and right spring hinge. High-quality sofa bed hinge, premium metal, strong load capacity. Smooth movement, easy installation, stable support. Perfect for sofa bed, folding sofa and furniture repair., Manufacturer: BgnEhRfL