FUNKTION Future Fin for Surfboard use K2 Twin KEEL 4.65” 2pc/Set FKGFCC-FT-K2

Fins fit like a glove into the slots. They work well enough on my beater and are stiff enough for my tastes.

Perfect shape and material, fits modern twin , Rider 130, 5’8

just beautiful, nice solid shape, size is great, futures style fits spot on, light enough, and enough flex, trying them in the water soon! love that it is part carbon and nylon, AND INEXPENSIVE!!!

For the range price they are ok, the terminations and ends on the edges are too sharp for my taste