OVERVIEW • World Longboard Champion Harley Ingleby's Athlete Fin • Small single fin adds more tail release to longer boards. • Ideal for performance longboards, surf SUP's and 2+1 set-ups. THE FCS II TOOL-LESS LONGBOARD SYSTEM • No need for a plate and screw. • Ability to adjust your fin position in the box mid surf. • Easily insert or remove your fin in seconds. No fin key required. • Designed to be used in most existing Longboard boxes. No new box required.