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  • 57MM HARKEN ZIRCON BLOCKS

    HARKEN
    $123.45 - $360.14
    $123.45 - $360.14
    $123.45 - $360.14
    $123.45
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

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  • 29MM HARKEN ZIRCON BLOCKS

    HARKEN
    $89.75 - $221.08
    $89.75 - $221.08
    $89.75 - $221.08
    $89.75
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

    View full details

  • 40MM HARKEN ZIRCON BLOCKS

    HARKEN
    $123.45 - $268.19
    $123.45 - $268.19
    $123.45 - $268.19
    $123.45
    In stock

    Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings...

    View full details