Christmas gift, dominoes, small train, lighting, music, automatic bidding, puzzle, DIY toy, electric bikeMaterial: Plastic+Electronic Components Self provided batteries: 2 No. 5 batteries Featured features: automatic card casting, lighting and music, directional adjustment Ability cultivation: emotional, visual, intellectual development, crawling, hands on and brainpower, grasping, sensory, hand eye coordination, other ability cultivation, interactive toys, auditory, parent child communication, interest cultivation Applicable age: Children (4 6 years old)