Captain Fin Co. CF-5 Fin Large Surfboard Fins | 5 Fin Set | Single Tab | Black Honeycomb RTM Construction Front Height: 4.75 Base: 4.62 Area: 16.73 Foil: Flat Rear Height: 4.4 Base: 4.3 Area: 14.39 Foil: 50/50 Quad: 4.0 Base: 4.05 Area: 12.45 Foil: 80/20 Flex: Medium Weight: LRG - 175+ lbs Single Tab/Futures Compatible Comes complete w/ Fin Key and Fin Storage Bag