Item Type: Electric Train Assemble Set Material: Plastics, electronic components Train Head Batteries: 2pcs 1.5V AAA batteries (not included) Signal Light Battery: 3pcs 140mAh ag13 button battery (built in) Package List 48 x Assembly Tracks 53 x Assembly Interfaces 12 x Trees 6 x Brackets 6 x Tunnel Brackets 1 x Signal Light 3 x High Speed Rail Carriages 3 x Trolleys 4 x Crews 2 x Indicator Stickers 10 x Signages 5 x Aircraft Accessories 3 x Fault Buckets 50 x House Assembly Parts 1Versatile Track Configurations: Track can be easily changed and assembled into various shapes and lengths, allowing children to freely explore and create their preferred toy train track layout. 2Immersive Play Experience: In the normal track driving mode, train plays music and automatically travels along the circular track, creating endless hours of interactive role play and joyful moments. 3Develop Skills: Engage children in activities that enhance their motor skills and problem solving abilities. They feel immersed, entertained, and proud of building and creating from start to finish. 4Ideal Gift To Kids: Train race track toy comes with a variety of accessories that inspire imagination and creativity while improving hand eye coordination, which is ideal for birthdays, Thanksgiving, Christmas, holidays, or spontaneous gifts. 5Plastic: DIY track toy set is made with skin safe and child friendly plastic material, ensuring sleek edges, no burrs, and can be played for a long time.