Pacific Vibrations Fiberglass Fins fits futures base - Carbon wrapped base honeycomb core The AM2 Large Honeycomb is a high-performance template with a wider base that provides increased drive through turns, perfect for high-performance surfing. The AM2 Large Honeycomb also has a fair amount of Rake, making it ideal for carving. The center fin is smaller than the side fins, which increases maneuverability and allows for tight turns and quick transitions. Made with honeycomb construction, the AM2 Large Honeycomb is lightweight and durable. side fins Base: 4.64 inch Height: 4.73 inch Foil: Flat rear fin Base: 4.63 inch Height: 4.49 inch Foil: 50/50