230-Piece Master Inorganic and Organic Molecular Model Set Disposable_Disposable or batteries required

or batteries required

plus a removal tool in a 4-compartment storage box

Whole-class-visible giant molecular model set with 99 atoms 1-2 inches in diameter and 343 total pieces including double-bond

5-ohm reference coil non-inductively wound from constantan on a 43mm ABS-supported bobbin with three 4mm sockets

and cervical spine across the same model for comprehensive head anatomy teaching

230-Piece Master Inorganic and Organic Molecular Model Set Disposable_Disposable or batteries requiredMaster 230 piece molecular model set covering both inorganic and organic chemistry, with multi color atoms, medium and flexible long bonds, and orbital components for teaching across both branches.