The appearance of this Transparent Tank Toy is very unique. Its body is transparent, and the colorful gears inside can be clearly seen. These gears will rotate with the movement of the car. Children are easily attracted by bright colors and moving gears. When this toy moves, it will lead the children to chase and crawl to exercise their athletic ability. This electric mechanical gear tank toy adopts transparent design and shows every detail of the tank interior mechanical parts. Kids can see how the interior components and parts move and generate power to make the it move with cool colorful light and realistic tank sound will move. Develops children gross and fine motor skills. Enhance brain development and build child's curiosity for new things. Kids will always love these kind of toys. This is the perfect source of ultimate fun and entertainment. The motorized tank can automatically change direction when it hits an obstacle without getting stuck on those obstacles. Makes a fantastic gift for birthday parties, festivals and holidays like Christmas, etc. Please reward your kid with these pull back tank toys. Recommended for kids ages 3 and up. Kids can view to gear to know mechanical concepts during their initial stages of learning 360 Degrees Rotating Transparent Concept Racing Tank with 3D Flashing Led Lights. Transparent body to see gear mechanism with awesome sound effects. It is a bump and go Tank so the fun never stops. Battery-driven: Need 3AA batteries(not included) 360-degree rotation: The universal wheel at the bottom of the Tank allows 360-degree rotation and changes its direction when hitting an obstacle.