Features: brand new and high quality A great DIY Toy kit for kids to understand basic phystics knowledge. A sense of accomplishment inspires children's thinking and lays a solid foundation for their future. Explore the wonders of science through a hands-on science experiment. This kids experiment set will satisfy you little budding scientists' curiosity, open their horizon, find a brand new world and have great fun in spare for time. The DIY air rocket launcher uses the squeeze pump to fly the rocket and assemble it by itself to exercise children's hands-on and brain-powered abilities. Specifications: Material:Metal+Plastic+Wood+Foam Size:Approx.40cm/15.74in Package Includes: 1 Set DIY Rocket note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.