Ram Mount Ball Adapter with AMPS Plate ~ 0603-0570; Black, Size Fits Garmin/TomTom (BLK1GTT)
$12.95
* The base consists of a 1" diameter B size rubber ball connected at right angles to a 2" x 1.7" square base
* The base has four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern