"The car is strong and made of materials that are not harmful to players. Trains connect tracks in a large, wide circle. The train uses 3 AA batteries not included in the box. Strengthen imagination and skills Practice meditation and stimulate attention. Reduce screen addiction Suitable for kids who like railway work. Bright colors stimulate vision very well. There's music, there's lights, and it's cute and appropriate for your age. Inside the box there are equipment: ▪️Train x 1 ▪️Train connection x 1 ▪️Train tracks x 16 Train track size: 85.5 cm x 57.5 cm."