FCS Key and Shim Set

Tighten up loose fitting fins in standard fin boxes. The FCS Hex Key and shims are compatible with FCS fin screws and FCS 1 fin boxes. 

Carry a spare key. Shim your fin as needed.

New Old Stock. Expect some packaging flaws. Contents are perfect, we checked. Comes with basic instructions.

See the Bic SUP Fin Video