8.25" Nickel-Plated Sampling Tongs Electricity & Magnetism_Electromagnetism & Motors Optically worked double-convex glass lens

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

Twelve-ball drilled set in a foam-lined plastic case with two each of aluminum

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

Nine-piece flat brass weight set with dual hooks on each piece

8.25" Nickel-Plated Sampling Tongs Electricity & Magnetism_Electromagnetism & Motors Optically worked double-convex glass lensNickel plated sampling tongs measuring 8. 25 inches in length transfer small solids from stock containers without contamination from bare steel or laboratory users.