Extend your antenna with this stainless steel antenna shaft. Designed for the Wilson 2000, Wilson 5000, and Stryker SR-A10 antennas. This extended shaft will allow you to use your bottom loaded antennas on installations where the load coil needs to be higher. Especially useful If you have a Freightliner Cascadia, Kenworth T600/660/680, or if you have an antenna mounted behind your cab on a pickup.