Tom Carroll's signature FCS II SUP fin, Surf specific quad set for performing tight radius turns, Performance Core Carbon material, Medium: (65 - 80Kg / 145 - 175 Lbs). FIN SPECS SIDE FINS: Base: 4.61" / 117mm, Depth: 4.49" / 114mm, Area: 15.28"^2 / 9860m
The FCS system (Fin Control System) was designed by Brian A. Whitty in Elanora, Australia, and patented on November 7, 1995. It can be recognized by the 2 tabs on the fins which are designed to fit into a securing plug that attaches the fin to the board.