Shark Hamstick Mobile antennas are mono-band antennas are ideal for any mobile setup. These high quality, all american made antennas use a quality fiberglass shaft and adjustable stainless steel whip for tuning. Perfect for vehicle and portable HAM rigs, all hamstick models have a standard 3/8 x 24 thread base. The 5 Pack includes the popular 10, 15, 20, 40 and 75 meter band models.