FUNKTION FCSII Fin for Surfboard use K2 Twin KEEL 4.652pc/Set FKGFCC-FCSII-K2This model is a brand new modern keel inspired by the classic keel. The combination of the flexibility created by the template that gently rakes toward the tip area and the flat foil on the inside makes it responsive and promotes high performance. Funktion Fiber Flex Car..