4 1/2 foot long, 3/8 inch diameter fiberglass/copper conductor with 3/8x24 male and female mounts on ends. Black anti-static jacket. Convert base loaded antennas to highly efficient center loaded antennas. Use MFJ Bug Catcher, MFJ-2620/2640T, MFJ manual screwdriver antenna, Hustler or any loading coil with 3/8x24 threads. Extend ham sticks for efficient fixed station antennas. Replacement for broken or bent Hustler bottom mast section. Add telescoping whip for multi-band vertical.