The second generation automatic specialshaped paddle board balance rudder is designed with safety in mind. Unlike traditional fins, this fin is flexible and retractable, reducing the risk of injury for both adults and children while surfing. Key benefits Safer, flexible design: the fin flexes and retracts to help minimize injury risk during surfing for all riders. Allcondition performance: ideal for near shore surfing, shallow reefs, and for activities in lowwater streams, rivers, and shallow lakes. It adapts to different water conditions for a smoother ride. Durable and boardfriendly: made from soft flexible plastic, a 9inch automatic shaped tail fin that resists breakage and is less likely to damage the fin box of your board. Sleek and functional aesthetics: available in black and orange with a streamlined design that enhances maneuverability and stability for confident riding. Specifications Size: 9 inches Material: soft flexible plastic Type: second generation automatic shaped tail fin (paddle board balance rudder) Colors: black and orange Use scenarios Familyfriendly beach sessions: enjoy safer, more forgiving performance near the shore with reduced injury risk for both adults and kids. Surfing near shallow reefs: maintain control and stability while navigating shallow, uneven bottom environments. Angling and paddling in lowwater areas: suitable for fly fishing or casual cruising in streams, rivers, and shallow lakes where maneuverability matters. This tail fin design focuses on safety, reliability, and practical performance while preserving board integrity and ease of use.