RAM® Drill-Down Mount for Garmin GPS 12 & 38 Series RAM-B-107-1BU The RAM-A-336U is a 9/16"

The RAM-A-336U is a 9/16" diameter A size ball with a female 1/4"-20 threaded hole

The RAM-B-149Z-2-237 consists of a medium length B-size double socket arm with a 1/4"-20 threaded stud and an ATV/UTV clamp base

The integrated GDS® Technology™ platform enables charging of the mounted device and safely secures the phone in a variety of applications

The RAM-101U-235-1 consists of a 6 inch double socket arm

RAM® Drill-Down Mount for Garmin GPS 12 & 38 Series RAM-B-107-1BU The RAM-A-336U is a 9/16"The RAM B 138 GA1 consists of a form fitting cradle for Garmin GPS 12 & 38 with a medium length B size arm and a 2. 5" diameter round plate with universal AMPS hole pattern.