The product sets the two themes of children#17s favorite mysterious space and ancient dinosaurs, consisting of 12 large accessories can be self-assembled into a rocket machine, but also can be deformed long cervical dragon, the other 4 types of the same series can be assembled into a "space time crossing space station", the other 4 types are also self-assembled from multiple accessories into different aerospace forms and dinosaur forms, a product has different cognition, experience, scene, play point, and so on. With assembly, deformation, combination, sound and light multiple toys to play point collection.