Over the years, the high-end market of building block toys has been occupied by LEGO, and the low-end market has been occupied by traditional wooden building blocks, with serious homogenization. It is hoped that this design will break the current situation of the building block toy market and explore a new concept and framework of building blocks. The blocks are inspired by the orderly arrangement of molecules, which are designed with six holes on the surface and each hole corresponds to different connecting rod accessories. The spheres are matched by the straight rods, T-shaped rods, right angle connecting rods and plugs, and the two ends of the pole skillfully use the elasticity of the plastic itself to lock the sphere. In addition, the circular arc design on the pole is more convenient and humanized for plugging. The unique way of combination allows children to enjoy the fun of free collocation and stimulate children's logical thinking and imagination of three-dimensional space. The modularization of design is conducive to the afterward researches, reducing the repeated investment of the mold. Furthermore, more supporting accessories will be introduced to make building blocks more interesting in the future.