The rotating mount attaches to the Garmin yoke mount supplied with the GPS units. The GPS then mounts on the product and allows the GPS unit to be rotated so the passenger can view the unit if mounted on the pilots side. If used on the co-pilots side, then the pilot can rotate the GPS so he/she can view it as well. Note: The rotating mount is used for the Garmin GPS units (295,196,296,396)