Consists of a short double socket arm, 3.68" diameter round base and 11" x 3" rectangular base. The round base contains pre-drilled holes, including two holes at 180 degrees and three holes at 120 degrees. The rectangle base contains different combinations of pre-drilled holes which will match up to many electronic devices and mounts, including marine GPS, CB radios, ham radios, gimbal brackets, a
RAM Mounts
Large Marine Electronics Ball Adapter - D Size Fish Finder Bracket 3 x 11 Universal Mounting Hole Base - AliExpress
RAM® Large Marine Electronics Mount - D Size Medium – RAM Mounts
RAM® X-Grip® Tether Instructions
RAM Mounts, size D - Shop Online at Ruoto
RAM Mounts Australia, RAM Phone & Tablet Mounts
RAM Marine GPS mount RAM-111U
RAM® Universal Marine Electronic Mount - D Size Short – RAM Mounts
best-universal-tablet-mount
RAM Mounts - D Size Components
Universal Ball Adapter Phone Mount