FCS2 tri-fins, Performer, size M. This is a 5-fin set, so you can use it as a tri-fin or quad-fin. It has all-around performance and is characterized by its good balance, allowing it to handle any wave. It combines both maneuverability and stability, making it widely recommended for beginners who want to start shortboarding, as well as intermediate surfers who want to improve their turns. These are the perfect 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