US$ 25.00
Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input
and redistribution during cell division for biology instruction
Insulated 10
and major vessels of the human heart
Battery Box, Model C Capacity_50mL Shows oxygenated and deoxygenated bloodUsed to enclose dry cells safely for student built circuits, this battery box adds insulated terminals and prevents short circuits from rolling cells touching exposed lab metalwork.
US$ 25.00
US$ 57.50
US$ 57.00
US$ 13.00
US$ 25.50
US$ 34.50
US$ 17.95
US$ 2210.00
US$ 17.95
US$ 2573.46