RAM® 2.5" Square Post Clamp Mount with Round AMPS Plate - Medium Arm RAM-108BU The RAM-101U-AC1 consists of a

The RAM-101U-AC1 consists of a double socket arm

5" diameter base

STANDARD length 6" double socket arm and 1

Made of high strength composite and powder coated marine grade aluminum

RAM® 2.5" Square Post Clamp Mount with Round AMPS Plate - Medium Arm RAM-108BU The RAM-101U-AC1 consists of aThe RAM 101U 247 25 consists of a 6 inch double socket arm, round 2. 5" diameter round base with the universal AMPS hole pattern and 2. 5" clamp base. The clamp base will wrap around a maximum width of 2. 5" and is tightened by screwing the two plates together with the included nuts and bolts. Rubber ball, socket technology dampens shock and vibration, as well as allows for almost infinite adjustment, perfect viewing angles.