Premium Material This surfboard fin and fin base are made of nylon plastic, offering toughness and durability. It provides excellent wear resistance, impact resistance, and hydrodynamic performance. The detachable design ensures secure fitting with no looseness between connecting parts. Unique Design The streamlined shape enhances surfboard stability and balance, improves turning performance, reduces impact from underwater obstacles, and increases safety. Ideal for surfers who prioritize maneuverability. Practical and Easy to Install The base is detachable. The center fin attaches to the base via a slide rail and is secured with a connecting rope. The rope design enhances portability and prevents loss, offering a safe, practical, and convenient installation and removal process. Wide Application This center fin is suitable for surfboards and can also be installed on kayaks, canoes, and pedal boats. Installation is simple: attach the fin base to the rear of the board, then insert the fin into the base. For paddle boards, the base can be glued to the bottom deck using adhesive.