The RAM-120 consists of a double socket arm, 2.5" diameter round base with the
universal AMPS hole pattern and side clamping cradle that is designed to hold a
large variety of electronic devices. Originally design for strapping to a lantern
base, this mount can also be used as a base to strap to a round rail.
Width Range: 1.75" - 2.75"
Depth Range: 1.5" max
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter