Description
Size:22*18*4cm

【Description】:
◆This set of chemical molecular structure model uses environmentally friendly non-toxic plastics, advanced design, reasonable configuration.
◆Can be used to build Inorganic and organic chemistry ball-stick molecular structure model.
◆Such as water, oxygen, hydrogen, hydrogen sulfide, graphite, sodium chloride, alkane, alkene, alcohol, phenol, aldehyde, ketone, etc.
◆Develop thinking , observation, practical and analytical ability, stimulate interest, enhance memory, help understanding.