The National Geographic Glow-in-the-Dark Science Kit contains four awesome science activities that will illuminate your imagination. This kit includes two glow-in-the-dark slime kits, glow-in-the-dark putty, and more. Magic in the details... Contains 4 science activities Includes 2 glow-in-the-dark slime kits, allowing you to make your own slime at home Glow-in-the-dark putty comes with a UV light that lets you draw glowing images or words in the putty Grow your own glow in the dark crystal Fluorescent wernerite specimen glows when you shine your UV light on it Includes instructions for each activity, and complete learning guide that teaches all about crystals, slime, putty, and fluorescence Created by Bandai The bare necessities Warning: not suitable under 36 months due to small parts Warning: contains button or coin cell battery. Hazardous if swallowed Warning: this set contains chemicals that may be harmful if misused. Read cautions on individual containers caredully. Not to be used by children except under adult supervision