This package is not a complete mount solution and includes only the Aluminum Seat Rail or Floor Mount featuring a 4-Hole AMPS Head and 22" Flexible Gooseneck. (Holders sold separately.) Arkon's GN088-SBH-AMPS-L22 car or truck seat rail or floor mount can be used as a replacement, upgrade, or as an addition to an existing mount. It is compatible with devices having a 4-Hole AMPS pattern, including vehicle-specific mounts (VSMs), cameras, GPS devices, audio/video receivers, or satellite radios including Sirius S50, Sirius XM Onyx Plus, XM Onyx EZ, Sirius XM Lynx, Stratus 7, Dock & Play, and Sirius Dock & Play (sold separately). This mount is also ideal for mobile radio holders, housings, and other devices used by public safety, construction, and utility applications. Formerly an industry standard, the 4-Hole AMPS pattern consists of four holes located in a rectangular pattern spaced at 30.17mm by 38.05mm (measured as the center-to-center distance between holes). The car seat rail or floor mount is made of strong yet flexible aluminum, and is ideal for service vehicles, trucks, or those who need easy access to their devices but prefer mounting them somewhere other than the windshield or dashboard. Use a socket wrench to install the mount to the car's seat rail. Loosen the passenger seat track bolt, insert the included seat track bolt bracket, and then retighten the bolt. Bend the 22'' gooseneck and rotate the swivel ball adapter head for 360-degree rotation for exact positioning of the device. Optional floor brackets are included for screwing the mount directly into the floor of the vehicle. (Warning: Drilling into the vehicle's floor may damage the vehicle. Use caution and consult a mobile install professional to avoid drilling into any sensitive vehicle components.) A metal conduit is also included for bracing the mount's gooseneck against the car's console or other area to minimize vibration.