[Encourages Crawl and Develops Muscles] Flip the switch on the bottom, and the toddler train toy lights up and moves forward. The transparent design allows you to clearly observe the movement of the mechanical gears. The colorful lights and music will entice your baby to crawl and chase, helping babies aged 6 to 12 months develop motor skills and balance. [Auto-Rotating Musical Toy] A switch on the bottom enables both music and driving modes. This toy train inspires curiosity and fun in children of all ages. [Mechanical Learning Toy] This transparent electric train is powered by three batteries and a screwdriver. The internal gears rotate as the train moves. The six steam vents on the head oscillate up and down. The wheels also rotate via moving bearings, just like a real steam train. This will spark the curiosity of children aged 1 to 3, teach them the physics of mechanical movement, and develop their observation skills. [ Safe Tummy Time Toy] This crawling toy for babies aged 6-12 months is made of ABS material with smooth, polished edges and clear edges. It contains no small parts to prevent choking hazards. This baby train toy is the perfect Christmas and Halloween gift for your child. Reminder: If you place the disc on the wheel, it stays in place; if you remove it, it moves along the ground and rotates when it encounters an obstacle. Specification: Material:Plastic Size:17.7*10.7*9cm/7*4.2*3.5in Color:as picture Battery:3*AA battery (battery not include) Package include: 1*Transparent light music train Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data.