Simple installation steps, easy and simple to assemble and disassemble. This molecular model chemical concept, and it is designed for all ages, students, teachers, parents and more. It plays a very important role in child development. Features -Color:Black -Material:Plastic -Size:1.50X0.50X0.50cm/0.59X0.20X0.20in -Size:3.00X0.50X0.50cm/1.18X0.20X0.20in -The C60 chemical molecule model can help teachers and parents to cultivate children's interest in the chemistry. -The molecular model kit is science enlightenment tool for student to explore the molecular world and stimulate their interest. -This chemistry molecular model is easy to separate and easy to build, easy to remove and put on. -No matter for home study or academic teaching demonstration use at high school is excellent. -The model kit is a great to be put school in most of the molecular structure model for the study of experimental . Package list: 2 x sets of c60 model structure materials