Firestik medium duty antenna spring. Same Firestik quality in a plated spring with a dull finish. Spring steel and chrome plated. The medium duty is perfect for 2 foot fiberglass antennas and 3 foot flex antennas such as the Roadpal, Firefly, and the Super flex!
measures approximately 3.0" (76mm) tall with a diameter of 0.800" (20mm) with standard 3/8x24 threads for all antennas.