Arkon's RM08825MM seat rail pedestal allows you to create a custom 25mm (1 inch) compatible seat rail floor mount of your choice. This metal bendable gooseneck pedestal is compatible with 25mm holders, cradles, and pedestals from Arkon as well as other manufacturers (sold separately). The car seat rail 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. This includes only the 18 inch seat rail mount pedestal with single socket 25mm ball head. (Cradles, holders, and devices sold separately.) This mount is easy to install with no drilling needed. Use a socket wrench to install the pedestal by loosening the passenger seat track bolt, insert the included seat track bolt bracket (2 different brackets are included for various seat rail configurations), and then retighten the bolt. Just add any 25mm (1 inch) ball compatible cradle, holder, or adapter.