Power Flex is a Pro Teck Fin with a medium core flex. The fin bends on turns, and then springs back, creating forward thrust similar to a swim fin. The medium flex core and flexible trailing edge makes the board turn smooth and fluid, with continuous speed.
Power Flex Fins are recommended for intermediate to professional surfers.
Very nice fins! Beautiful and of very good quality. I use "Power Flex Fins" on my two boards.
This set is done for "2+1" mounting (with 7" center fin) and this is the right item for "quattro mounting" with two 4,5" fins.
Since I have discovered these products after having been severely injured by a fin cut, I am a great fan of this fins and cannot imagine to go to the ocean without them. I wish the other surfers get them too...