Description: 【Interactive Learning Experience】: This DIY Science Toy kit is designed for children aged 7 and above, offering a hands on to understanding the principles of action and reaction forces through creative scientific experiments 【Quality Material】: Made from wood, this Educational Stem Project kit ensures a sturdy construction that can withstand repeated use, making it great for young scientists eager to find and learn 【Compact Design】: With dimensions of 11cmx10cmx11cm/4.33inchx3.94inchx4.33inch, this compact 3D Assemble car model is easy to handle and assemble, providing an engaging educational tool without taking up too much space 【Educational Tool for Schools】: Ideal for school science classes, this Scientific Experiment kit aids in teaching fundamental mechanics concepts, enhancing students' comprehension through practical application 【Complete DIY Package】: The package includes all necessary materials to build the action and reaction car model, ensuring a comprehensive learning experience right out of the box Specification: battery: 2 AA battery(not include) Size Chart: Assembled: 11cmx10cmx11cm/4.33inchx3.94inchx4.33inch Package Includes: 1 Action and Reaction Forces Car Model DIY Kits Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.