This advanced molecular model set, containing both ball & stick and a space-filling model, is designed for building organic and inorganic molecules such as ethane, ethylene, acetylene, benzene, halide, etc. It assists students to learn microparticles of chemicals from hands-on experience. This organic Chemistry model can help Chemistry learners understand the 3 dimension atoms and molecules in the invisible microworld. It’s an essential tool to inspire children or students’ interest when learning Chemistry. In addition, the model can enhance the practical ability to link the molecular.