As a recliner spring replacement parts and sofa bed replacement parts, this spring can work well for your recliner and sofa bed, the specific information is as follows 1. Overall length: 2 inches(50.8mm) from inner hook to inner hook Coil length: 1 inches (10 turns design) Coil diameter: 11/16 inches Wire diameter: 2.5mm 2.Made of 304 stainless steel, non-electroplating process, no electroplating layer, will not fall off, and will not rust. 3.Suitable for reclining chairs, sofa casters, folding beds, and sofa beds. Suitable for recliner, sofa caster bed and other tension springs that can be replaced. The springs we provide are of excellent quality and suitable elasticity. If you encounter any problems in use, please contact us, and we will try our best to solve your problems.