Made from high-strength polyurethane elastomer material for durability and reliability. Equipped with an anti-slip feature to provide secure grip and enhanced safety during use. Compatible with a variety of surfboards and paddleboards for surfing and paddleboard activities on beaches, rivers, and other waters. The kayak paddle lines incorporate elastic bands for flexible extension and retraction, with length that can be adjusted to suit the activity. One end of the paddleboard ankle leash features a thick, soft ankle cuff to improve comfort. Adjustable closures fit most ankles. Use scenarios - Beach and river paddling: use on surfing and paddleboard sessions to keep your board close, with a secure grip and comfortable ankle connection for safer handling in varying water conditions. - Calm to moderate waters: adjust the length easily for different board types and water conditions, maintaining appropriate tension and control during movement. - Multi-activity use: suitable for switching between different boards or activities, with a simple adjustment of the length and a comfortable ankle cuff that fits most users.