Frogger - Carbon Fiber Stiffener Insert
Frogger: Carbon Fiber Stiffener Inserts gives divers the option to get a more powerful kick. Increases resistance on the upward (Flutter recovery stroke) bend cycle. Turn your TAC fins into a frogging monster.
Bi-Directional - 30% more rigidity to the overall fin
Price for a full set of fins (4 stiffeners)