These affordable gold-plated BFA banana plugs provide simple, effective connection to the terminal blocks on your speakers and amplifiers. The gold-plated contacts provide good conductivity and resistance to oxidation and corrosion. The transparent PVC shell acts as insulation. The cable connectors are screw-type, and a second screw holds the cable firmly to the connector. These BFA banana plugs accept cable diameters up to Ø5mm.