FeaturesProven reliability and strength, the Big Wave Leash will provide you with assurance and confidence to take on waves of consiquence. Cord Thickness: 8mm Wave Size: 4 – 12 feet Engineered Polyurethane Cord Modular Rail Saver + Cuff Proven reliability and strength, the Big Wave Leash will provide you with assurance and confidence to take on waves of consiquence.