ARC Large PC Tri-Quad Retail Fins FeaturesLarge size Tri-Quad power set designed for fast, controlled on-rail surfing. Raked template with wide base and narrow tip producing exceptional speed and drive. Flat foil on the side fins, quad rear has 50/50 foil. Performance Core Produces exceptional speed and drive, allowing the rider to push hard and perform longer turns on the open face. Open face, down-the-line waves, particularly good in point and reef breaks. Recommended for boards with deep concaves and moderate-to-extreme rocker.