RAM Mount Ball Adapter with AMPS Plate for Most GPS and Garmin Cradles The RAM-B-347U base consists of a 1" diameter 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. 2″ x 1.7″ base with 1″ rubber ball that contains the universal AMPS hole pattern for the Garmin Zumo, TomTom RIDER and Urban Rider Features: Material:Powder Coated Marine Grade Aluminum Ball Size:B Size 1" Rubber Ball Note:The "U" in the part number reflects product packaged in poly bag. Weight: 0.1 lbs |