Kit includes 5 pair (red and black) of double 4 mm banana plugs Each banana plug has 3.1 mm (0.125") diameter hold for mounting wires and components with set screws Each banana plug has nickel-plated brass plugs and jacks with beryllium copper springs Molded with durable ABC insulation Maximum ratings for non-hazardous applications 5000V, <1/2 mA Maximum ratings for CD compliance 30 Vrms or 60 Vdc, 15 Amps One year Warranty