Features: This is a DIY planetary exploration vehicle. Students can assemble and learn by themselves, which can help children learn the mechanical transmission structure of vehicle models. Learn how to convert electrical energy and solar energy into mechanical energy, so that children can understand and master the knowledge that solar energy is a clean new energy from an early age. Through learning and practice, we can systematically and comprehensively master the principles of energy conversion and mechanical motion structure, and learn how humans explore outer space planets. It can be said that a small planetary exploration vehicle can create a future mechanical inventor and aerospace enthusiast. Help develop children's hands-on brain skills and creativity. Applicable age 6+.    Description: Product name: DIY Solar Planet Exploration Vehicle;  Product weight: 490g (including color box);  Product size: 21*14*12 CM;  Color box size: 24*21.5*5.5 CM;  Carton size: 53*53*47CM;  The product does not include electricity (2 AA batteries);    Product function description: 1. DIY building block assembly experience.  2. The solar upgrade version has two sports modes that can be switched: one requires two R6/AA/UM3 batteries to provide power, and the other is powered by solar panels.  3. This is a four-wheel drive model device, which can move forward by using vertical wheels on the four corners.  4. It includes all the materials required for simple buckling or screwing assembly. Simple wiring is required to complete the assembly.  5. The power is provided by the motor.     The unique selling point of science and technology education of the product (cultivating various abilities of children's growth process);  1. Ability to seek knowledge, explore and innovate;  2. Ability to think independently and solve problems manually;  3. Understand the mutual cooperation and interaction of mechanical transmission structure; understand the movement principle of kinematics and the change of power;  4. Understand the generation and interaction of physical and mechanical power, electricity, solar energy, wind energy, and chemical energy, and mutual conversion to enhance children's understanding and exploration in all aspects of physics, machinery, chemical changes, and new energy power since childhood;  5. Science popularization, environmental protection, popularization;  6. Understand the transmission principle of machinery and cultivate children's scientific and technological knowledge and exploration ability;    Note: 1. Please understand the product might have some colour difference due to different monitors and scenes.  2. Please allow slight deviation for the measurement data.    Package Included: 1x DIY Solar Planet Exploration Vehicle Set