1、DIY Assembly: Through diy practice, helps children to improve hands on skills, ability to think independently and develop brain and creativity. 2、Educational Function: Helps kids to learn mechanical transmission structure and systematically and comprehensively learn principles of energy conversion. 3、Two Modes of Energy Output: One is battery powered, which makes convenience to play indoors. The other is solar powered, just need to operate under sunlight. 4、Four Tire Drive: With six rubber tires, and just 4 wheels can drive car with gears, can do deceleration motion and speed up movement to improve kid interest in engineering. 5、Perfect Gift: Solar power space car allows children to learn something about science, a wonderful gift for children to know construction of car model. 4 x Plastic Assembly Blocks1 x Body Box1 x Main Body Box Cover1 x Solar Panel1 x Left Gear Box 1 x Right Gear Box1 x Gear Assembly4 x Gear Parts1 x Sticker1 x Screwdriver1 x Manual Item Type: Solar Power Space CarMaterial: Plastic, Electronic ComponentsBattery: 2 x AA battery (not included)Power Supply Mode: Solar power supply or AA battery power supply (not included)Suitable: Above 6 years old