Fangrui Product Details Features 1. Electric Universal Driving, Equipped With Universal Wheels At The Bottom Of The Car, Will Automatically Turn When Encountering Obstacles During Driving, With High Playability. 2. Battery Installation Display: Open The Battery Cover, Install 3 No. 7 Batteries (excluding Batteries), Install The Batteries, Cover The Battery Cover, And Open The Light To Play. 3. Detachable Carriage: Each Carriage Has Corresponding Buckles And Rings, Which Can Be Aligned And Tightened For Play. 4. Easy Installation Of The Carriage: The Buckle And Snap Ring Can Be Aligned And Tightened For Play. 5. The Appearance Is Smooth And Free Of Burrs. The Automatic Universal Wheel Is A Simulation Of A Harmonious Train, Helping Children Fulfill Their High-speed Rail Dreams. Specification Material: Plastic Cement Style: 551a-1 Three Sections, 551a-2 Four Sections, 551a-3 Five Sections Color: White Size: 41.5 X 5 X 6.5 Cm52 X 5 X 6.5 Cm62 X 5 X 6.5 Cm Weight: 210 G, 248 G, 290 G Package Include: 1x Harmony Train Toy Crafted With Attention To Detail Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.