Upgraded Fin: Introducing our upgraded paddle board fin, crafted from high-strength PA66 material combined with 30% fiberglass for enhanced durability. We've refined our production process to provide a sleek, matte-textured surface, creating the perfect blend of endurance and aesthetics. Efficient Design: Our SUP fin boasts a classic curved shape with a slightly thicker center and sl edges, offering optimal water-breaking performance and maneuverability. Paddleboard enthusiasts will appreciate the ease this design brings to their water adventures. Attention to Detail: We've revamped the locking strap's attachment method, eliminating concerns about the fin lock coming loose. The redesigned buckle allows for quick installation and release, making setup simple and convenient. Broad Compatibility: This paddleboard fin is suitable for a wide range of inflatable paddleboards, kayaks, or longboards with slide-in bases on the market. (Note: Base not included)