BE AMAZING TOYS-Geyser Tube With Caps. Learn how to trigger an enormous geyser by dropping Mentos chewy mints into a bottle of soda using the Geyser Tube. You can pick the style of geyser: fountain, fan or run away! You can launch up to fourteen geysers with a single roll of Mentos. This 6x9-1/2 inch package contains the geyser tube, three different caps and one package of Mentos candies. For ages 8 and up. WARNING: Choking Hazard-small parts. Not suitable for children under 3 years. Imported.