FCS2 tri-fins, Performer, size M. This is a 5-fin set, so you can use it as either a tri-fin or a quad-fin setup. It offers all-around performance and is characterized by its balance, allowing it to handle any wave. Because it combines both maneuverability and stability, it's widely recommended, from beginners who want to start shortboarding to intermediate surfers who want to improve their turns. These are the right fins to maximize the potential of your board. Please consider this opportunity. #FCS2 #FCS #Performer #Surfing #SurfboardFins #Fins #TriFins #QuadFins #Shortboard #Surfboard #SurfGear Fin System/Fin Box...FCS2 Type...Fins Number of Fins...Five Fins (5FIN) Fin Material...Glass Flex Model Name...FCS II Performer