One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Heavy-duty 500-piece teacher molecular model

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

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

Four-socket E10 lamp holder pre-wired in series on a hard-plastic base with two 4mm banana terminals

letting students compare four densities by mass alone while the volume is held constant across the set

Plastic strip with two crocodile clips and 4mm sockets

One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Heavy-duty 500-piece teacher molecular modelMetal 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.