Get the perfect launch and see the Mentos and diet soda reaction without getting drenched. Attach this special Geyser Tube to any plastic two-liter diet soda bottle. Secure the trigger pin, then load the desired number of Mentos mints into the tube. Once you have locked the pressurizing nozzle in place, pull the pin and clear the area. When the Mentos candies drop, watch in amazement as the soda geyser shoots into the air. Conduct experiments to see how many candies create the optimal geyser. Comes with Geyser tube, one roll of chewy Mentos candies and instructions. Geyser tube is reusable; only more mints and another bottle of soda is needed to repeat the experiment. For ages 6 and up.