For a limited time, get a Learning Resources 100-Piece Deluxe Building Set online at Amazon for only $16.49, regularly $32.99. This STEM toy introduces children ages three and up to sorting, grouping, counting, designing, constructing, and physics with spinning gear movements.

This offer is only available online. Get free two-day shipping with Amazon Prime. Not a member? Sign up for a free 30-day trial of Amazon Prime. Otherwise, shipping is free on orders of $25 or more.

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