FCS Fins - FCS II Connect Blue Performance Glass 9inch Fin - Blue :: Unisex > Surf Accessories. 2 + 1 CompatibleDesigned to be used in existing FCS Longboard boxes. No new box requiredDepth: 9.03'' / 229mmBase: 6.43\ / 163mmArea: 39.91'' / 25748mmà‚²FCS Longboard finSweep: 33.7Foil: 50/50Neutral. well balanced templateVersatile. high performance Longboard (LB) fin for all conditionsOffers a combination of drive. speed and response for modern longboarding Size: one size.