Electrostatic Discharge Tongs with Brass Spheres, 20cm Subcategory_Test Tubes Sheet-metal housing on a clamp-and-rod

Sheet-metal housing on a clamp-and-rod base swivels to any angle

Fine 40-60 mesh iron filings in a 100-gram sprinkle bottle

varying length isolating density as the single variable across materials

1 inches) with red/blue pole markings and steel keepers

illustrating late-pregnancy presentation for obstetric and reproductive anatomy teaching

Electrostatic Discharge Tongs with Brass Spheres, 20cm Subcategory_Test Tubes Sheet-metal housing on a clamp-and-rodBrass 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.