Orb Factory-Curiosity Kits: Wave Rocket Boat. Blast off into boat- racing action with the amazing power of chemistry! Fill the boat with vinegar, add the tube of baking soda, seal on the lid, give it a big shake, and drop it into the water. The boat blasts off into action! This 11x8x3-1.4 inch package contains one boat hull, one custom bottle, one lid with nozzle, three silicone o-rings, one fuel tube, one sheet of waterproof stickers and four clear round stickers. Recommended for ages 8 and up. WARNING: Choking Hazard- small parts. Not for children under 3 years. Imported.