View cart “Van De Graff Generator” 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 ElectrostaticElectroscope, Metal Case ADD Quick View Quick View Tuning ForcksTuning Fork and Striker ADD Quick View Quick View Tuning ForcksChromatic Tuning Forks, Economy ADD