Falcon Line Master Mooring Snubbers can stretch to more than twice their length to absorb shock loads and protects boats, cleats, and lines from the strain of winds and waves. Highly resilient EPDM rubber is resistant to sunlight, saltwater and ozone. It never discolors or damages a boat. Unique, injection molded nylon locking system provides 100% safe and secure locking of the line with no hardware required. The harder the line is pulled, the tighter the grip. No slipping ever. Easy to fit-variable resilience. Keeps boats stable when moored. Ideal for overnight trips.