The FCS II Mick Fanning PC Thruster Surfboard Fin Set is designed for powerful, fast surfing. The flex pattern in the FCS II Mick Fanning PC Thruster Surfboard Fin Set delivers bursts up speed and the right amount of release. Ideal for surfers who want to push the most power in their turns. Great in open faced down the line waves like overhead point breaks of hallow reef breaks. *Please Note: this fin is designed to be used exclusively with the FCS II Fin System, and will not fit in the traditional FCS Dual Plug System.