K40 K40A 57.25" Base Load CB Antenna Kit with Stainless Steel Whip and Black/Red K40 Logo Universal mounting application 18 feet custom-made RG-58A/U 95 per cent shielded coax, stranded to prevent breakage Exclusive Meti-Plas construction for superior performance 17-7 stainless steel 57.25 inches whip antenna Unique capacitor for consistent SWR across all 40 channels