Features: 1.Premium Material: This mooring spring is made of marine grade 304 stainless steel, it features durability in the sea water and saltwater environment. 2.Shock Absorption: This mooring spring acts as powerful shock absorbers on the mooring warp, reducing the impact load on your boat. 3.Fixed Function: These springs, sometimes called mooring buffers, help reduce stress cracking around the cleats and can also be used when anchoring. 4.Simple Operation: Mooring springs can be used with ropes. It is recommended that these springs be placed in a straight line, rather than actually cutting the rope, which means that the chain can withstand stress if the spring fails. 5.Wide Use: This spring is also a sandbag, hammock, rope, C shaped standing chair, sun shade spring, tightener tightening spring for tarps, tents, and boat mute mooring spring. Specification: Item Type: Mooring Spring_x000D_ Material: Stainless Steel, Rubber_x000D_ Application:_x000D_ Designed to protect your vessel and accessories from shock and pressure while at anchor.