One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Stackable 300mm red 4mm lead

Stackable 300mm red 4mm lead with nickel-plated split-hollow pins on both ends

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

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

One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Stackable 300mm red 4mm leadMetal 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.