“Symmetry” is a very important concept in art and science. The word “symmetry” has been used for describing something that is “bilaterally-symmetric,” “beautiful,” or “well-balanced” since a long time ago. Therefore, it is obviously an important concept for paintings, sculpture, and even music. This word is also a very essential concept in math, physics, chemistry, and biology. This set is useful for learning the concept of symmetry by making various crystal and molecular models with high symmetry.