Arkon RMSMAMPS2517 Robust 4-Hole AMPS Drilled-Base Mount - 17mm Ball Compatible (sku 59213)Drilled base mount is compatible with Arkon 17mm ball holders and Garmin GPS (sold separately) Low vibration 4 Hole AMPS mount attaches with screws to car dashboards, consoles, walls, and other solid flat surfaces Model RMSMAMPS2517 Robust 4 Hole AMPS Drilled Base Mount is part of Arkons Robust Mount Series. It is compatible with existing 17mm ball pedestals, holders, and cradles, and mounts to car dashboards and consoles as well as walls or other