Surfboard Fins: Shortboard Thruster

These are standard size fins for a shortboard in thruster configuration (3 fins). These fins are made to be compatible with fin boxes made by ProBox. But they can easily be made compatible with FCS fin boxes by cutting a notch in the tab at the base, or glassed on if the tab is fully removed. **UPDATE** Added a crude futures compatible base. Be aware that Futures side fins have cant built into the fin rather than into the base like FCS and ProBox.

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