4' Flexible Silver Load Series CB antenna fiberglass whip with "Tunable Tip" allows for fine tuning SWR resonant frequency. The 200 Watt antenna whip with 1/4" diameter tapered fiberglass construction has a chromed brass ferrule and standard 3/8"x24 threads. In an exclusive dark gray color and 22-gauge silver plated wire to provide higher efficiency the unique ground lead helps to insure reduced static and ignition interference and has a static reducing weather cap.