This is the Smithsonian® Electronic Crystal Growing Kit by NSI International For ages 10 years and up FEATURES: Grow (10) amazing crystal formations Watch as the electronic base makes the crystals change colors Learn about crystalline habitata and crystal structures Includes color poster (35" x 23") Includes complete instructions The color changing base comes with the required 3V battery INCLUDES: (2) Bags of chemicals (3) Bottles of coloring dye (1) LED light base (1) Clear blister tray (1) Pair of goggles (1) Large mixing stick (1) Small mixing stick (1) Bag of granite stones (1) Magnifying glass (1) Color poster with intructions COMMENTS: This set contains chemicals that may be harmful if misused Not to be used by children except under adult supervison Due to small parts that could cause a choking hazard please keep away from children 3 years of age and younger bl 10/6/09