Five Oceans Mooring Line Snubber, 23", 29" MADE from High-Quality Super Elastic Rubber LENGHT of 29 1/8" (740mm) and Diameter of 3/4" (19mm) PROVIDE MAXIMUM protection against the stress caused by wind, waves, and wakes MOORING SNUBBERS prevent mooring line breakage along with compensating for sudden jolting and excessive stretching of lines beyond parting strength SUITABLE for Boats Up to 60FT. EASY Installation, no tools needed Materia: Rubber Length: 29-1/8&#034; (740mm) Diameter: 3/4&#034; (19mm)