With this electronic crystal growing set by NSI, you can grow your own amazing large crystals, crystal clusters and crystal geodes. Grow gold "citrine", "emerald", amethyst" and more. Learn about crystalline habitats and crystal structures and watch as the electronic base makes your crystals change colors. Includes: Crystal growing chemicals Crystal and geode growing cup molds Casting compound Safety goggles Color changing display base Detailed instructions 35 inches x 23 inches color poster Ages 10+ Grow 10 amazing crystals Warning: contains small parts Not suitable for children under 3 years 30-day limited liability warranty Imported Material & Care Plastic Spot clean only