House Fly Longitudinal Section Anatomical Model Subcategory_Pitchers letting students read both small-cell

letting students read both small-cell and battery-stack voltages on a single instrument

25-inch metal frame and end hooks

this metal-base board tensions six 1-meter wires side by side with 4mm socket terminals at each end

sliding through a full octave from C5 (521Hz) to C6 (1024Hz) for hands-on comparison of length to fundamental frequency

Two 25mm lenses folding out together for 7x combined magnification in a pocket housing

House Fly Longitudinal Section Anatomical Model Subcategory_Pitchers letting students read both small-cellBuilt for insect anatomy study, this house fly longitudinal section reveals dipteran internal structure, digestive system, and arthropod organization for teaching.