Cord thickness 7mmWave size 2-8 feetSmooth rotating nylon cuff and rail saver :: Unisex > Surf Accessories. Durable polyurethane cord provides the ultimate in strength. stretch and elasticityLength: 6ft 0Cord Thickness: 7mmWave Size: 2 - 8ftPerforms to the highest standard in a wide range of conditionsInterchangeable smooth rotating nylon cuff and swivel assemblyMachine stainless steel swivelsExtra strong Rip & Grip Velcro at cuff and rail saver Size: one size.