Check the listing for details. FCS II H4 Tri. Condition: New. Listed at 160.00 USD. The H4 looks and surfs different to any other fin. Precision Swiss engineering matched with a highly evolved template provides an unprecedented level of control and predictability at high speeds. Overview UNIQUE TEMPLATE Radically different side & centre fin templates create a powerful fin set with ultimate speed & drive. SIDE FIN PROFILE: Lower section produces maximum acceleration, while hatchet like tip creates stability & control. CENTRE FIN PROFILE: Highly raked elliptical outline reduces drag, and offers feeling of predictability when releasing through turns. FIN FOILS TEMPLATE: Thicker base with tapered tip optimises flex & regulates the release of energy during rail to rial transitions. Ideal Conditions A wide range of conditions, particularly good in critical overhead waves. Board Types Designed to fit the FCS II Fin System. Recommended for performance shortboards with moderate-to-low rocker. Fin Family Accelerator: Find Control. Speed, flow and response with added control. SMALL (55Kg - 70Kg / 120 - 155 Lbs) MEDIUM (65Kg - 80Kg / 145 - 175 Lbs) LARGE (75Kg - 90Kg / 165 - 200 Lbs)