Features: 1Plastic Material: Molecular model kit is made of environmentally friendly plastic, which is very safe and will not be broken. It can stimulate children's interest in learning, exercise practical skills, and expand spatial imagination. 2Bright Colors: Molecular model kit is composed of colored plastic balls and connecting keys, with bright colors, excellent craftsmanship, easy to use, and durable. 3Teaching Tools: Organic chemistry model kit is used for inorganic/organic chemistry tutorials, organic molecular structure models, and spherical molecular structure models. 4Scope of Application: Molecular model kit can be used to describe the structure of various inorganic and organic molecules in chemistry textbooks. 5Applicable Scenarios: Molecular model set can be used to construct a variety of common and slightly complex C, H, O, N, chemical organic molecular structure models, suitable for teaching and laboratory use. Item Type: Molecular Model Kit Material: PP Package Included: 18 x Black Atom 4 x Red Atom 3 x Sky Blue Atom 1 x Purple Atom 1 x Yellow Atom 4 x Green Atom 28 x White Atom 1 x Small Wrench 16 x Purple Connection Key 40 x White Connection Key 20 x White Scale Key