The FCS II Fins Carver Neo Glass Large Tri-Quad Fin Set is designed for powerful, drawn-out turns with added hold. An elongated template with a high degree of sweep provides exceptional hold off the bottom and when carving on the open face. Ideal for power surfers who like to push hard against their fins and draw out their turns. Great for waves with an open face, down-the-line waves, particularly good in point and reef breaks. Recommended for boards with deep concaves and moderate-to-extreme rocker.