Features: Shock Absorbing: The mooring spring acts as powerful shock absorbers on mooring warps, reduce shock loads on both your boat and pontoon. Anti Cracking: Sometimes called mooring snubbers, these springs help to reduce stress cracking around cleats and can also be used when anchoring. Deck Protection: The extra-spring provides protection for deck fittings-from the effects of violent snatching and impact. Long Service Life: Spring buffer is made of high‑strength 316 stainless steel, which effectively prevents oxidation and can maximize product life. Multifunctional: This tightener spring can also be used as a spring fastener for chains, sandbags, hammocks, ropes, standing chairs, parasol springs, camping beach tents. Specifications: Material:Stainless Steel Size:As Picture Shown Color:Silver Package Includes: 1x Mooring Spring note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.