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Amazon.co.jp: Foam Board for US Fin Box Replacement Upgrade Instructions with Single Center Fin Easy Soft Board for FCS Compatible : Sports & Outdoors
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8 5" BLACK US BOX for single fin, to place your longboard single fin on your surfboard - VIRAL Surf for shapers
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8 5" BLACK US BOX for single fin, to place your longboard single fin on your surfboard - VIRAL Surf for shapers
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