IDEAL, Compression Connector, RCA, Conductor Range: 029 - 042 IN, 20 - 18 AWG Center Solid Conductor, Material: Brass, Finish: Nickel-Plated, Nominal Impedance: 75 OHM, Coaxial Cable Type: RG-59, Bandwidth: 3 GHZ, Dielectric Diameter: 0.142 - 0.150 IN, Overall Jacket Diameter: 0.230 - 0.270 IN