Features: 1.Shock Absorbing: The mooring spring acts as powerful shock absorbers on mooring warps, reduce shock loads on both your boat and pontoon. 2.Anti Cracking: Sometimes called mooring snubbers, these springs help to reduce stress cracking around cleats and can also be used when anchoring. 3.Deck Protection: The extra spring provides protection for deck fittings from the effects of violent snatching and impact. 4.Long Service Life: Spring buffer is made of high?strength 304 stainless steel, which effectively prevents oxidation and can maximize product life. 5.Multifunctional: This tightener spring can also be used as a spring fastener for chains, sandbags, hammocks, ropes, standing chairs, parasol springs, camping beach tents. Specification: Item Type: Mooring Spring_x000D_ Material: 304 Stainless steel_x000D_ Diameter: Approx. 6 mm (1/4 in)_x000D_ Length: Approx. 370 mm (14-9/16 in)_x000D_ Fitment: Yacht Marine hardware fittings PackageList: 1 x_x000D_ _x000D_ Mooring Spring