주요기능

• Make your own CO2-powered "Message in a Bottle" rocket with Project Mc2 construction queen, Camryn Coyle
• Blast a secret message sky high using safe household ingredients, like baking soda and vinegar
• Includes all pieces need to build the rocket, including rocket top, body with secret message compartment, chamber, base and fins
• Decorate the rocket with the 2 sticker sheets and 2 rocket-shaped chalk markers