Electrostatic Friction Rod Kit, 3 Cloths and 3 Rods Type_Round End with retractable hooks for tandem

with retractable hooks for tandem stacking during physics force experiments

the lower-friction variant of the metal-bearing bench-clamp pulley in the series

Polished 8cm brass sphere on an ebonite-insulated metal base

Electronic Stability Program Module - Item # AT-5202

the wider face area handling broader incident beams for refraction and wavelength experiments

Electrostatic Friction Rod Kit, 3 Cloths and 3 Rods Type_Round End with retractable hooks for tandemElectrostatic friction rod kit pairing wool, cotton, and silk cloths with glass, ebonite, and acrylic rods for triboelectric charge generation experiments in series.