One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Four-meter 6A extension cord with

Four-meter 6A extension cord with one 3-pin and three 2-pin sockets and a switched indicator-light handle

Highest-decade single-dial resistance box stepping from 100k to 1M ohms in 100k-ohm increments

Standard-length 300mm black 4mm-stackable safety lead rated to 12A with shrouded nickel-plated pins

Heavy-duty 500-piece teacher molecular model set with 230 atoms and 270 bonds

illustrating molecular symmetry and bonding geometry

One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Four-meter 6A extension cord withMetal base one meter potentiometer with 24 SWG constantan wire stretched along a millimeter scale, supplied with a jockey and heavy duty 4mm socket terminals for null deflection EMF work.