RAM Mount Square 2'' x 1.7'' Base w/1'' Ball - AMPS Hole Pattern

Ram 2'' x 1.7'' base with amps and 1'' ball for the garmin zumo, tomtom rider & urban rider 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. This adapter/base is designed to hold the following devices: garmin zumo 400 garmin zumo 450 garmin zumo 500 garmin zumo 550 garmin zumo 660 tomtom rider 2 tomtom urban rider material: powder coated marine grade aluminum ball size: 1'' rubber ball "b" size. Electronics - gps accessories. Ram mount store-b size,automotive/rv-gps - accessories. Ram mount square 2'' x 1.7'' base w/1'' ball. Ram-b-347u