Steve Spanglers Geyser Tube for $3.99

Learn why the amazing soda geyser works. Kids have seen it on TV and on the Internet, but they can't get it to work unless they get all the Mentos in the soda bottle all at once. Science teachers have known the power of the pop for years. Now young scientists are learning how much fun it is. All non-toxic and fully safety tested. Includes Geyser Tube, Mentos candies, instructions