Two 80-degree folding and height-adjustable supports, with black spring hinges widely used in sofa lift hinges and storage rack hinges.

1. Sturdy and durable stainless steel hinges, rust and corrosion resistant, for a long service life. Invisible design, simple and practical.

2. High-strength and durable springs with an 80° opening angle. Suitable for supporting upper lifting devices, such as folding beds, sofa beds, and lift-up closet doors. 3. Each package contains one left-hand and one right-hand spring hinge. Screws not included. 4. Spring hinge for folding sofa bed/closet, 80° opening.