Plugs for FCS II
thingiverse
Plugs for filling FCS II fin boxes. I use one set of these on my 5-finbox board when I'm surfing it as a quad, and two when I'm surfing it as a thruster. The tiny hole is sized for a FCS fin key for easy removal. Tighten the grub screws in your fin box to hold them in place when you're in the water because god knows the ocean doesn't need more plastic in it.
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