Flexible and Safe Design The second generation automatic specialshaped paddle board balance rudder features a flexible and retractable fin. This design reduces the risk of injury for both adults and children during surfing, compared with traditional fixed fins. Versatile Performance for Various Surfing Conditions Ideal for nearshore surfing, shallow reefs, and lowwater environments such as streams, rivers, and shallow lakes. It adapts to different water conditions to deliver a smooth and enjoyable ride. Durable, LowDamage Construction Made from soft flexible plastic, this 9inch automatic shaped tail fin is built to last. It is resistant to breakage and less likely to damage the fin box of your board, providing longlasting performance and peace of mind during your sessions. Sleek Design and Practical Benefits Available in black and orange. Its streamlined design enhances maneuverability and stability, helping you ride the waves with confidence. Use scenarios Paddling near shore or in shallow surf areas with safetyfocused performance for familyfriendly sessions. Fly fishing from a paddle board in lowwater streams or rivers, where a flexible fin supports steady navigation. Exploring shallow lakes or environments with lowwater access and shallow reefs, benefiting from improved control and stability.