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 slender edges, offering optimal water-breaking 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 worries about the fin lock coming loose. The redesigned buckle now allows for swift installation and release, making setup a breeze. 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) Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!