Folding Sofa Hinge 180 Degrees & 5 Gears Steps Ratchet Hinges Chair for Armrest Backrest Adjustable Connector Easy to Use

3 to 5 gears are adjustable, the maximum angle is 180 degrees, and 7 combinations are available. Suitable for sofas, beach chairs, fishing chairs, folding beds and other folding furniture. Driven by springs, the inclination of armrests, backrests, pillows and seats are adjusted in a fitting manner. Folding Sofa Hinge 180 Degrees 5 Gears Steps Ratchet Hinges Chair for Armrest Backrest Adjustable Connector Easy to Use. Features: brand new and high quality. 3 to 5 gears are adjustable, the maximum angle is 180 degrees, and 7 combinations are available. Suitable for sofas, beach chairs, fishing chairs, folding beds and other folding furniture. Driven by springs, the inclination of armrests, backrests, pillows and seats are adjusted in a fitting manner. Made of high-quality iron material, durable. Smooth edge design, no for sharp edges and corners, more secure and beautiful. Specifications: Material: Iron. Surface Treatment: Zinc-White Plating. Color: Silver(As Picture Shows). Hole Size: 6.