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it ensures your fin stays firmly attached to your board
Install two Boost Fins on your board with the Double Adapter
Works with all Boost Fin models
With a 7000 mAh lithium-ion battery
the adapter simply plugs into the fin box
Boost Protective Plug adapter it ensures your fin staysCharging Port Plug Replacement Cover for Boost Fin Keep your charging port protected. Waterproof seal blocks water from entering the charging port during use Salt & corrosion protection keeps metal contacts clean and intact over time Perfect fit designed for all Boost Fin models Easy replacement lost yours? Get a spare and never ride unprotected again
