A transparent Robot can do universal walking and Turn on the light and music switch, the robot will emit cool lights, and playing dynamic music will attract your baby to crawl and chase. It can attract their attention and improve children's crawling ability. Our electric mechanical gear robot toy adopts a transparent design and shows every detail of the robot's interior mechanical parts. Kids can see how the internal components and parts move and generate power to make them move. As the gear toys move, It helps children understand the mechanical concept during play and develop imagination, cognitive abilities, and motor skills. Concept Gear robot toy is for 3+ year-old kids and made of premium ABS, BPA free with no sharp edge, safe and durable enough and no need to worry about it will not hurt your little ones. Due to the effects of light and shooting angle, the actual color of the item may differ slightly from the color shown on the picture.