Helix Cord Naturally sourced, corn-based Bio-Resin construction results in a lighter & stronger cord. Inner Helix straightens under load to absorb shock & amplify strength. Helixs textured cord surface creates smoother water flow resulting in less drag. Titanium Swivels Super durable, light & corrosion resistant. Cord Thickness 6.5mm In-Cuff Silicone Grip Reinforced Horn Elongated & comfortable horn reduces back foot tangling. Introducing FCS Freedom Helix Regular Natural/Blackde Leash Surf FCS A perfect product for practice: water sports > surfing > Surf accessories > Leash Surf