8.25" Nickel-Plated Sampling Tongs Electricity & Magnetism_Electromagnetism & Motors 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

Optically worked double-convex glass lens at 75mm diameter and 100mm focal length

Twelve-spring steel extension set paired across six size combinations with looped ends

supplied with two sets of 100g weights for experiments on torque

Composite rod splitting glass and brass at its midpoint

8.25" Nickel-Plated Sampling Tongs Electricity & Magnetism_Electromagnetism & Motors Greatly enlarged inner ear modelNickel plated sampling tongs measuring 8. 25 inches in length transfer small solids from stock containers without contamination from bare steel or laboratory users.