FCS Fins - FCS II Connect Glass Flex 9inch Fin - Black :: Unisex > Surf Accessories. Offers a combination of drive. speed and response for modern longboardingArea: 39.91'' / 25748mmà‚²Designed to be used in existing FCS Longboard boxes. No new box requiredFCS Longboard finVersatile. high performance Longboard (LB) fin for all conditionsBase: 6.43\ / 163mmDepth: 9.03'' / 229mmSweep: 33.72 + 1 CompatibleFoil: 50/50Neutral. well balanced template Size: one size.