Introducing the Transformable Gear Toy Set, perfect for family interactive playtime! Our toy is designed to improve hand-eye coordination and logical thinking skills in children. The transformable design and easy operating system make it ideal for small hands to play with. Specifications:Name: electric gear building block toysMaterial: PPPacking List:83 pieces (including 1 electric mainboard)or 97 pieces (including 1 electric mainboard + railcar)or 166 pieces (including 1 electric mainboard )or 180 pieces (including 2 electric mainboards + railcar)or 249 pieces (including 3 electric mainboards)or 263 pieces (including 3 electric mainboards + railcar)Notes:1. Due to the different monitor and light effects, the actual color of the item might be slightly different from the color which is showed in the pictures.2. Please forgive a slight measuring deviation due to manual measurement.