Electrostatic Discharge Tongs with Brass Spheres, 20cm Lab Equipment and Supplies_Audio Visual Equipment and three cast iron support

and three cast iron support rings for ring-stand assemblies

Decade capacitance box stepping from 100pF to 1000pF in 100pF increments at plus-or-minus 5% on 63V

Five-pack of 3/4-inch steel marbles

Cork-lined four-prong jaws cushion beakers

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

Electrostatic Discharge Tongs with Brass Spheres, 20cm Lab Equipment and Supplies_Audio Visual Equipment and three cast iron supportBrass spheres electrostatic discharge tongs at 20 cm with adjustable jointed rods and an insulated ebonite handle, safely grounding accumulated static charge during high voltage demonstration work.