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Winter STEM Challenge Card MEGA Bundle$19

Add the Year of STEM Challenge Calendars!

Special one-time offer just $19 (75% off full price!)
A calendar filled with 300 STEM activities for every month, holiday, and season! Instructions included.

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    Winter STEM Challenge Card MEGA Bundle$19

    • Total payment
    • 1xWinter STEM Challenge Card MEGA Bundle$19
      -+
    • A Year of STEM Challenge Calendars$19

    All prices in USD

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