1. Durable and functional PVC construction Made from PVC material, this surf fin is robust and functional, delivering durable performance for your boards. It withstands diverse water conditions and provides excellent stability during water activities. 2. Secure attachment Equipped with stainless steel screws, this fin provides a secure and reliable attachment to your boards. It stays in place during intense watersports or rough waves, improving control and maneuverability. 3. Wide compatibility Suitable for a variety of boards such as surfboards, longboards, shortboards, waterski, paddleboards, funboards and more. It is designed to fit most fin box cavities on the market, enabling compatibility with different board types. 4. Precise fit Before purchase, measure the size of your fin box cavity. This surf fin comes in a suitable size of approximately 7 x 14.2 cm to ensure a precise fit and avoid compatibility issues. Use scenarios - Replacing worn or damaged fins on daily driver surfboards, longboards, or shortboards in a range of water conditions from calm to choppy. - Installing on rental or demo boards to provide a universal, reliably fitting fin for multiple customers. - Traveling or stocking a kit for multiple board types, using a single fin size that fits most standard fin boxes.