Product name: small molecular model Product weight: 70g Sales unit: 1 square Product material: PP plastic Product use: molecular model formation, chemical process learning The product contains: 25 hydrogen atoms with a diameter of 7 mm 18 carbon atoms with a diameter of 9 mm 4 oxygen atoms with a diameter of 8 mm 3 nitrogen atoms with a diameter of 8 mm 4 chlorine atoms, diameter 10mm 20mm key connection 30 40mm 12 . key connection Feature: 1. Environmentally friendly materials, food grade PVC, healthy and safe, no smell 2. Small and flexible, improve learning ability and make learning easier
