Designed for small wave surf, the Pro-Lite 5'5" Josh Kerr Signature Leash utilizes a 5mm urethane line and a stainless steel double swivel to keep your board securely tethered but not tangled. Thankfully this pro-level leash has finished neoprene ankle cuffs and a detachable rail saver so when the waves are closing unexpectedly you and your board don't get too thrashed.