Britt Merricks hand foiled signature twin fin set is designed to fit between a traditional upright and keel fin. While conceived to maximize the performance and flow of the new CI Twin Pin, the setup works great in any twin fin board when you are looking for the perfect combination of drive, hold, and release. Dimensions: Depth | 5.31″. Base | 5.77. Area | 23.58 sq in Reviews There are no reviews yet. Be the first to review “Channel Islands Britt Merrick Twin Surfboard Fins – Black” Cancel replyYour email address will not be published.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.