Mentos Geyser Tube, a dedicated tool for the "Mentos Cola" Mentos Geyser injection experiment, now on sale at an international retail site.
Mentos Geyser" is a phenomenon in which bubbles are blown up by adding Mentos to Coke. On an overseas shopping site, a "Mentos Geyser Tube," which is said to be capable of blowing bubbles up to a height of 9 meters, is being sold.