RAM MOUNTS Double Socket Arm Mount with one 2.5" diameter base with universal AMPS hole pattern  and one flat 6.25"x2" rectangular plate w/ pre-drilled holes.

RAM MOUNTS Double Socket Arm Mount with one 2.5" diameter base with universal AMPS hole pattern and one flat 6.25"x2" rectangular plate w/ pre-drilled holes.

RAM-111U$50.49