Features:
Designed for balancing chemical equations, advanced science learning. Nice for organic structures, cyclic compounds, and biology models.
Improve hands on ability and exercise children to develop g ood creativity.
Made of superb p lastic material, it is easy to install and long-lasting.
Comes with 4 diffferent optional molecular model kit for your diverse choice: for your different needed.
1# 122PCS Molecular Model Kit Set((59 Atoms Model+62 L ink Keys+ 1 T ool)
2# 179PCS Molecular Model Kit Set(76 Atoms Model+102 L ink Keys+ 1 T ool)
3# 240PCS Molecular Model Kit Set(86 Atoms Model+153  L ink Keys+ 1 T ool)
4# 444PCS Molecular Model Kit Set(196 Atoms & 234 L inks & 3 Orbitals & 1 Short l ink remover tool)

Specifications:
Material: Platsic
Types: 4 (Optional)
1# 122PCS Molecular Model Kit Set((59 Atoms Model+62 L ink Keys+ 1 T ool)
2# 179PCS Molecular Model Kit Set(76 Atoms Model+102 L ink Keys+ 1 T ool)
3# 240PCS Molecular Model Kit Set(86 Atoms Model+153 L ink Keys+ 1 T ool)
4# 444PCS Molecular Model Kit Set(196 Atoms & 244 L inks & 3 Orbitals & 1 Short l ink remover tool)
Item color: Multicolor
Package size:
1# 2# 3#: 235 * 170 * 35mm
4# 230 * 170 * 70mm
Package weight: 
1#: 450g 2#: 560g 3#: 650g 4#:850g

Paking list:
Types: 4 (Optional)
1# 122PCS Molecular Model Kit Set((59 Atoms Model+62 L ink Keys+ 1 T ool)
2# 179PCS Molecular Model Kit Set(76 Atoms Model+102 L ink Keys+ 1 T ool)
3# 240PCS Molecular Model Kit Set(86 Atoms Model+153 L ink Keys+ 1 T ool)
4# 444PCS Molecular Model Kit Set(196 Atoms & 234 L inks & 3 Orbitals & 1 Short l ink remover tool)