Features: brand new and high quality<br> 3 to 5 gears are adjustable, the maximum angle is 180 degrees, and 7 combinations are available.<br> Suitable for sofas, beach chairs, fishing chairs, folding beds and other folding furniture.<br> Driven by springs, the inclination of armrests, backrests, pillows and seats are adjusted in a fitting manner.<br> Made of high-quality iron material, durable.<br> Smooth edge design, no for sharp edges and corners, more secure and beautiful.<br> Specifications: Material: Iron<br> Surface Treatment: Zinc-White Plating<br> Color: Silver(As Picture Shows)<br> Hole Size: 6.5mm/0.26inch<br> Length: 15cm/5.90inch<br> Pipe Diameter: 16mm/0.63inch<br> Thickness: 2mm/0.08inch<br> Gear Part Thickness: 2.3mm/0.09inch<br> Number of Gears: Positive 3 Gears 45 Degrees / Third Gears 180 Degrees / Diagonal Third Gears 180 Degrees / Positive Fourth Gears / Fourth Gears 180 Degrees / Fifth Gears 90 Degrees / Fifth Gears 180 Degrees<br> Package Includes: 1x Folding Sofa Hinge<br> note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.<br> 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.