Up to 84% Off STEM Toys and Building Sets from Thames & Kosmos, Wonder Workshop, and More

Amazon is offering Up to 84% Off STEM Toys and Building Sets from Thames & Kosmos, Wonder Workshop, and More as the Gold Box Deal of the Day! This offer is valid today only or while supplies last.

Check out the 4M Deluxe Crystal Growing Combo Steam Science Kit – DIY Geology, Chemistry, Art, STEM Toys Gift for Kids & Teens, Boys & Girls [Amazon Exclusive] marked down to $20.99 and it ships for free with your Prime membership or any $25 purchase.

• Explore STEM and steam concepts with a DIY stunning crystal collection kit
• Grow more than 10 vibrant crystals in assorted colors and textures including a glow-in-the-dark crystal and 2 Crystal geodes
• Each colorful crystal is unique and will reach full size in 7 to 10 days by following the detailed instructions
• The 4M deluxe crystal science kit includes materials for 1 large crystal, 3 medium crystals, 4 small crystals, 1 glow-in-the-dark crystal and 2 Crystal geodes
• Recommended for age 10 years and up

Here are a few other options:
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