Science and Exploration Sets Specifications:Material: ABS plasticWeight: 290 gPacking list: 1 x inflatable boat, 2 x trolleys, 6 x balloon Premium material The balloon cart kit is made of ABS plastic, environmentally friendly materials are non-toxic and tasteless, so that the baby can play safely. Aerodynamics Make use of aerodynamics to promote environmental protection and energy saving without using the battery. Toys that while playing can be played on aerodynamic principles to propel the car forward. Practical Design The toy is a great DIY toy, the whole product is designed with rounded corners that will not hurt your kids hands. The toy can improve your child's athletic skills, and the homemade model toy set needs to be installed before playing. Easy to use Three steps Put the balloon in the car and fasten it. Line up the inflatable cargo space and install the car. Press the release button on the pump. The car can move forward. Cute cartoon design The toy is a great DIY toy for kids to learn some science and physics. Balloons and toy cars are always children's favorites, but this product can combine both and make them unique. Ideal gift for your children. Note: We send according to the color of the first picture and the quantity of the title. If the title is not written, follow the content in the description. 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.