Plug Switch - One Way Two Brass Blocks With 4mm Insulated Terminals With Tapered Plug With A Fluted Top Are Mounted On A Wooden Base, An Accurately Tapered Plug With A Fluted Top Fits Into The Tapered Hole Between The Two Blocks, Ensuring Very Low Contact Resistance.
Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube