1. This educational molecule modeling kit is designed for easy chemistry learning for organic, inorganic and functional groups. The structure model kit designed for beginner to advanced science and chemistry learning. Learn how to model organic structures easily.2. The set provides to students from grade 7 to graduate level with color coded bonds to help visually demonstrate the structure and geometry of compounds. All organic molecular are color coded to universal standards making identification easy and use.3. This organic chemistry molecular model to easily identify all organic molecular and connectors. Delivered in a sturdy plastic box with four compartments for storage and portability. It is a complete model for chemistry.4. The molecular model kit for organic chemistry contains high quality design of organic molecular and bonds that seamlessly connect and disconnect to ensure you do not get tired fingers. It make your molecular model kit structures super easy and fast.5. The organic molecular are color coded to universal standards, making it easier for you. Smart box design with easy storage compartments for convenient storage.Specifications: hydrogen atom diameter 17mm, other atom diameter 23mmQuantity: 125 pieces setColour: as shownMaterial: PP+LDPE+ABSPackage Contents:1 set x Molecular Structure Building ModelOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.