for use with Devices that have a AMPS hole pattern on the back. (A square like hole pattern) The Device Mounting Adapter accommodates the AMPS hole pattern in both landscape and portrait. It can be drilled into solid, flat surfaces, such as walls, tables, and workbenches. The mount is compatible with devices having a 4-Hole AMPS pattern, including cameras, GPS devices, or satellite radios. The AMPS pattern consists of four holes located in a rectangular pattern spaced at 30.17mm x 38.05mm (measured as the center-to-center distance between holes). This tough mounting pedestal is also ideal for mobile radio holders, housings, and other devices used by public safety, construction, and utility applications. This package includes only the Heavy-Duty 4-Hole AMPS Mounting Pedestal with 4-Hole AMPS Head. This tough, low-vibration pedestal measures 6.5 inches high and is made of a combination of plastic and glass fiber. It features an AMPS drill mount base as well as an AMPS head. The arm of the pedestal swivels on both the top and the bottom, providing 360-degree rotation and the ultimate flexibility in positioning the device at any angle. (COMPATIBLE WITH PROCLIP & 1 inch Ball Connection MOUNT)

Compatible with Garmin Montana 600 610 650 680 Monterra Zumo 340 350 390 400 500 550 590 660 665 GPS (AMPS hole pattern connection). Low vibration 4 Hole AMPS mounting pedestal base attaches to solid flat surfaces. Compatible with devices having the 4 Hole AMPS pattern, including vehicle specific mounts, cameras, GPS, and satellite radios (Compatible with 1" inch /25mm & Proclip Mount AMPS mounting). Features a 4 inch pedestal arm with AMPS 4 hole connection. Brand New in ChargerCity NO FUZZ NO MESS Packaging.