RAM® Double Socket Arm with 75x75mm VESA Plate - C Size Short Adapter and 1" square rails

and 1" square rails

The VESA plate contains 75x75MM hole patterns

The square post clamp will wrap around a square post with a maximum width of 4" and is tightened by screwing the two plates together with the included nuts and bolts

This arm includes a 4" long bolt

The RAM-109H-1BU consists of two straight 6" swing arms with a drill-down base for horizontle surfaces and a C size ball

RAM® Double Socket Arm with 75x75mm VESA Plate - C Size Short Adapter and 1" square railsThis RAM 103U B 2461 consists of a 1. 5" rubber ball, connected to a 3. 625" square plate with a 75mm X 75mm VESA hole pattern and SHORT length double socket arm. The rubber ball is positioned 0. 88" from the center of one edge. The double socket arm will attach to all RAM 1. 5" dia. ball bases.