This is Bens performance Twin Fin designed for all styles of twin fin boards. These fin sets give you the smooth, drive-y feeling of a traditional keel, with a blend of the newer upright performance style fin. The outcome of this is a power-based performance twin fin. Perfect for all twin fin designs and versatile in all conditions. These fins are hand-foiled offering a stiff base with subtle responsive tip flex, amazing aesthetics, and proven durability.