Adjustable length and elastic design - The leash features elasticity for flexible expansion and contraction, and the length can be adjusted to suit your activity. Comfortable ankle cuff - One end has a thick, soft ankle cuff to improve comfort. Adjustable fasteners fit most ankles. Wide compatibility - Suitable for various surfboards and paddleboards for surfing and paddleboard activities on beach, river, and other waters. Durable construction and grip - Made from high-strength polyurethane elastomer for durability and reliability. Equipped with anti-slip features to provide secure grip and higher safety during use. Use scenarios - Beach and waves: wear on the ankle to keep your board or paddle within reach after a fall, reducing the risk of losing equipment. - River and lake paddling: the adjustable length allows greater freedom of movement while staying connected to your gear. - SUP practice and calm-water sessions: soft cuff enhances comfort for extended wear and contributes to safer, more controlled sessions.