View cart “Electroscope, Metal Case” has been added to your cart. Previous Product Next Product Friction Pad, Flannel 150 mm Square. Friction Pad, Flannel quantity ADD SKU: PH45040A-SP Categories: Electrostatic, Sound and Resonance, Tuning Forcks Description Additional information Description 150 mm Square. Additional information Description 150 mm Square. Related products Quick View Quick View ElectrostaticElectrophorus ADD Quick View Quick View Tuning ForcksRubber Hammer ADD Quick View Quick View ElectrostaticHard Rubber Friction Rod ADD