As a recliner spring replacement accessory and sofa bed replacement accessory, this spring can work well for your recliner and sofa bed, details are as follows 1. Overall length: 2-1/2 inches Coil diameter: 3/4 inches (13 turns design) Wire diameter: 2.5mm 2. Made of 304 stainless steel, made by non-electroplating process, no electroplating layer, will not fall off and will not rust 3. Suitable for recliner, sofa pedal bed, folding bed and other replaceable bed springs Suitable for recliner, sofa caster bed folding 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.