Attwood Marine Mooring Kit w/ 3/8in x 20ft Dock Line. The resilience of the snubber can be adjusted to conditions by increasing or decreasing the amount of line wrapped around it. Includes snubber and 20 ft. of solid braided multifilament polypropylene dock line. Specifications for Attwood Marine Mooring Kit with 3/8in x 20ft Dock Line: Manufacturer: Attwood Marine Length: 20 ft Package Contents: Attwood Marine Mooring Kit with 3/8in x 20ft Dock Line Attwood Marine 11730-7: Mooring Kit w/ 3/8in x 20ft Dock Line