DIY assembly: The design of small particle blocks stimulates children's creativity and imagination, and cultivates hand-eye coordination through the assembly process. Multi-functional play: The mini helicopter after assembly can be used as a decoration, and it can also be promoted to increase the fun and playability of the toy. Safety material: The use of high-quality materials, non-toxic and harmless, after strict safety testing to ensure the health and safety of children. Rich accessories: Includes detailed assembly instructions and all necessary building block parts, so that children can easily complete the assembly. Educational significance: Through DIY assembling, children develop patience, focus and hands-on skills, while stimulating an interest in science and technology