Pro Teck Power Flex Longboard 9" Center Box Fin By Surfco Hawaii

9" Center Power Flex Fin. Our Power Flex Fins are a Pro Teck Fin with a medium core flex. The fin bends on turns, and then springs back, creating a forward thrust similar to a swim fin. The medium flex core and flexible training edge makes the board turn smooth and fluid with continuous speed.
Power Flex Fins are recommended for intermediate to professional surfers.

Center Fin Design
The center fins have a streamlined leading and trailing edge that is soft and flexible, making the fin flow smoothly through the water.