The Snubber Dock Line stretches to absorb the shock to cleats, pylons, and other hardware. Comes with built-in snubber, foam protection, and sliding adjustment at both looped ends. For temporary docking of boats. Stretches to 5.75' Built-in snubber Sliding adjustment at both looped ends For temporary docking of boats | Greenfield Dock Buddy Snubber Dock Line, 4' Purple