Electrostatic Discharge Tongs with Brass Spheres, 20cm Lab Equipment and Supplies_Audio Visual Equipment Greatly enlarged inner ear model

Greatly enlarged inner ear model exposes bony and membranous labyrinth alongside a sectioned cochlea for vestibular and auditory anatomy teaching

Hand-operated vacuum pump with a 200mm copper pump plate and rubber seal

and pith for stem anatomy and plant tissue teaching

Five-pack of 3/4-inch steel marbles

Electrostatic Discharge Tongs with Brass Spheres, 20cm Lab Equipment and Supplies_Audio Visual Equipment Greatly enlarged inner ear modelBrass spheres electrostatic discharge tongs at 20 cm with adjustable jointed rods and an insulated ebonite handle, safely grounding accumulated static charge during high voltage demonstration work.