Spare 3" O-Ring Belt for Van de Graaff Generator Human Anatomy_Human Anatomy Models paired with a key card

paired with a key card for undersea geology and bathymetry reference

handling moderate pressure in benchtop fluid lines with resistance to temperature and chemical extremes

9-piece micro glass distillation kit holds 25mL in borosilicate glass for small-scale distillation and organic chemistry synthesis procedures

and molecular structure for genetics and biochemistry instruction

Spare 3" O-Ring Belt for Van de Graaff Generator Human Anatomy_Human Anatomy Models paired with a key cardSpare 3 inch O ring drive belt sized to the smaller Van de Graaff pulleys, kept on hand to keep electrostatic generators running once the originals stretch out of tolerance.