About This

• BUILD, TEST, AND TWEAK: Build, test, and tweak your own STEM marble runs on walls and windows with these cling-back pieces, hands on STEM toys and marble runs for kids in the classroom or at home
• BUILD, TEST, AND TWEAK: Build, test, and tweak your own STEM marble runs on walls and windows with these cling-back pieces, hands on STEM toys and marble runs for kids in the classroom or at home
• 10 STEM CHALLENGES INCLUDED: This set includes 10 double-sided STEM challenge cards to solve, and after mastering them kids can build their own, hands on STEM toys and marble runs for kids in class
• SELF-ADHESIVE CLING-BACK PIECES: The cling-back pieces require no permanent adhesive and can be used again and again on walls and windows, hands on STEM toys and marble runs for kids in the classroom
• GREAT FOR KIDS: These STEM Explorers Marble Runners work well as hands on STEM toys and marble runs for kids, ready for homeschool or kindergarten classroom use to build engineering and thinking fun