Description from Futures.:

The AM2 Honeycomb, designed by Al Merrick of Channel Island Surfboards, is a large size Balanced fin with a Ride Number of 4.6. Featuring a neutral flex pattern this fin is a more versatile option for bigger surfers. The AM2 Honeycomb fin is designed to perform in a variety of conditions and features a smaller center fin for increased maneuverability.

Specifications: 

              Side Fins     Center Fin  

Area      15.98          15.32
Height   4.73            4.49
Base      4.64            4.63
Foil        FLAT           SYMM

Ride Number: 4.6