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     Material: Stainless Steel, Rubber     Application:     Designed to protect your vessel and accessories from shock and pressure while at anchor.               Package List: 1 x Mooring Spring