Charming Test Tube Jewelry lets a young chemist keep a close eye on their experiments by wearing them! With four 2-inch tall test tubes that come with caps and a stand, you can set up your lab anywhere and conduct your own awesome experiments. Make ordinary powders fizz and foam, concoct a color changing mixture, create a rolling wave and a glowing test tube and even mix your own to see what you can create! Best of all, turn your test tubes into pendants for to wear your experiments. Learning Skill: Creative Thinking Recommended Ages: 8 Years And Up Use: Indoor Measurements: 12 Length/Inches, 8 Width/Inches, 2 Height/Inches Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported