Prototype: Modern gantry crane for loading and unloading containers.Model: This modern container terminal features solid, sturdy construction. The model has been specially designed for the needs of children. The traveling crane can be pushed by hand. The equipment for loading and unloading containers can be raised and lowered. The entire gantry crane is mounted on wheels and can be pushed. This model comes in individual parts requiring assembly.This set goes with the 29452 Container Train starter set and can also have the 78452 theme extension set, the 44700 car and 44452 Container Loading Car Set added to it.