With this round base, you can create the foundation for your individual RAM Mount holder. The round bases in the sizes 1 inch and 1.5 inches have four holes in the industry-standard AMPS pattern (rectangular arrangement, 30 x 38 mm) as well as three holes at 120-degree angles. The 2.25-inch round base has four industry-standard AMPS holes. The bases can be used for attaching device holders without a ball, such as a RAM Mount scanner holster.


