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

Pairs a 100mm aperture with a 20cm focal length for the lowest magnification in the chrome-framed reading-magnifier line

and hinge-distance scales adjustable from 0 to 45 degrees

this Alnico U-shape carries 45mm pole spacing for compact-bench field demonstrations and motor-effect setups

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.