4 in 1 DIY Assembled Engineering Vehicle Rail Sliding Car Electric Version

1. 4 kinds of detachable/replaceable fronts, assembled into 4 different engineering vehicles
2. Removable/replaceable track/tire
3. The container truck is equipped with a launch pad, which can eject the trolley
4. Slide rail trolley can slide down/tower crane telescopic/can be suspended to transport alloy trolley
5. Large nuts, easy to disassemble and assemble
6. Material: ABS
7. Suitable age: over 3 years old
8. Unfolded size: 49 x 19 x 22 cm, closed size 20 x 19 x 13 cm
9. Electric screwdriver powered by 2 x AA batteries (not included)