The RAM-108B-246U consists of a strap clamp 1.5" diameter ball base, standard length double socket arm and VESA (4 X 75mm) (4 X 100mm) plate. The strap will accommodate rails from 1" to 2.1" in diameter. Included is a rubber protection strip to help reduce vibration and to prevent scratching of the mounting surface. The 4.75" square plate contains 4x100mm holes and 4x75mm holes in each corner.

Plate Hole Patterns:
100 x 100 VESA Pattern
75x 75 VESA Pattern
100 x 50 Half VESA Pattern 

Strap Dimensions:
1" to 2.1" 

Material: 
Powder Coated Marine Grade Aluminum 

Ball Size: 
1.5" Rubber Ball Size 

Note: 
The "U" in the part number reflects product packaged in poly bag.