Description: - Electric transparent gear robot toy, the robot can advance like a balance car, and it will automatically turn to travel when it encounters an obstacle. - The transparent design allows children to see the gears inside, helping children understand the mechanical concept. - Random universal walk, colored lights, cool music. - With music and colorful cool lights, attract children's attention and add fun to play. - Let children learn while playing and improve their observation skills, need 3 AA batteries (Not Included).Specification: - Material: ABS plasticSize Chart:11.5x8x21cm/4.53x3.15x8.27inchPackage Includes:1x Electric Transparent Gear Robot ToyNote:1. This is not infant toy , please take away from kids to avoid eating.2. Please allow slightly error due to manual measurement.3. Due to the difference between different monitors, the picture may not reflect the actual color of the item.4. Wish you a wonderful on-line shopping!