Wave Size: Designed for flatwater paddling * Length: Coiled: 2ft. 6inches (0.76m) * Extended: 9ft (2.7m) * Cord Dia. : 5/16” (8mm) * Strap: 38mm Padded KNEE * Swivel: Double This new Ocean and Earth SUP / Longboard Coiled Regular Knee Leash Black 9ft 0in is a great buy if you are using a Sup on the water, as it will never let your board get away from you! This knee leash is also made from soft materials that make it comfortable to wear.