The compact 9" metal tube stows easily until needed. A boat owner simply pre-installs the included mounting clip. If the emergency VHF antenna is called to service, the tube slides securely in the clip as part of the mount. Once fully assembled, the VHF antenna is 16" long. This system includes 20' of RG-174 mini coax cable and a pre-installed PL-259 connector for quick and secure use when timing is critical.