Scientific Explorer Light Up Crystal Mega Set creates 5 beautiful crystals that can be displayed on a color-changing light-up base! No boiling water is needed, just stir the magic powder in water, leave in the growing cup and watch your crystals form. When done, place them on the base and watch how they pick up and reflect the light. Requires 3 AAA batteries (not included). Recommended for 1 or more players, ages 9 and up. Made in China. Package dimensions: 12.000 x 9.000 x 3.000 inches. Includes Color Changing Light Up Pedestal, 2 Large Growing Cups with Lids, 3 Small Growing Cups with Lids, 5 Growing Bases, 5 Colors of Crystal Powder, 5 Stir Sticks, Easy Instructions. Requires 3 AAA batteries (not included). Wipe clean with dry or damp cloth. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years of age. Choking hazard Imported Material & Care Plastic Spot clean only