Durable Mooring Snubbers are unharmed by saltwater, ozone, and UV rays. No knots to tie, no rubber to rot. 20" L. Fits 1/2" - 3/4" diameter mooring line. The Dock Edge DE90306F Mooring Snubber forces the line is exposed to, are taken up by the elongation of the mooring snubber, which reduces the load on the line as well as the boat's hardware. Features:• For secure and cushioned mooring from premium materials for extended lifespan• Ideal for sailing and motor boats and built in compliance with strict industry standards• Designed to reduce the shock load and meet your marine needs Fits 1/2" - 3/4" mooring line | Mooring Snubber, fits 1/2" - 3/4" line