Watch the lava flow with the 4M Science on Your Palm Pocket Volcano. Perform your own "volcanic eruptions" on the tabletop, in the bath, or even inside a glass. Watch as this awesome science gadget captivates your attention and amazes your friends. This fascinating science project requires baking soda and vinegar (not included). Detailed instructions explaining the step-by-step scientific process are included. Made using safe and high quality materials, this product is designed to last.