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 a secure fit with no looseness between connecting components. Unique Design Featuring a streamlined shape, this fin enhances surfboard stability and balance while improving turning performance. It helps reduce the impact from underwater obstacles during paddling, increasing safety. Ideal for surfers who enjoy agile maneuvers. Practical and Easy to Install The base is detachable, allowing the center fin to be mounted via a slide rail system and secured with a retention rope. The connected rope design makes it easy to carry and prevents loss. Simple assembly and disassembly save time and effort. Wide Application This center fin is compatible with surfboards, kayaks, canoes, and pedal boats. Installation is straightforward: attach the fin base to the rear of the board, then insert the fin into the base. For permanent mounting, the base can be glued to the bottom of a paddle board using adhesive.