Futures Al Merrick Keel Twin Fin (Large) The Al Merrick Keel (AMK) by Channel Islands is a modern take on a classic design. The AMK features a modern rake and graduated tip flex thats finely tuned for fast, high performance surfing.This keel-fin design is built to rip, but also ideal for those that just want to groove. Template Category | Keel (speed control, drive, trim) Construction | Fiberglass Size | Large Twin Side Fin Area 25.54 Height 5.15 Base 6.46 Foil FLAT Reviews There are no reviews yet. Be the first to review “Al Merrick Keel Twin Fin (Large)” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.