RAM® 75x75mm VESA Plate with Ball 
RAM-2461U
 
RAM® 75x75mm VESA Plate with Ball and Steel Reinforced Post
RAM-2461U-IN1

Overview:
The RAM-2461U consists of a C size 1.5" rubber ball connected to a 3.625" square plate featuring a 75mm x 75mm VESA hole pattern. The rubber ball is positioned 0.88" from the center of one edge. The RAM-2461U will attach to all RAM® C size double socket arms.
This RAM-2461U-IN1 consists of a 1.5" rubber ball, connected to a 3.625" steel reinforced square     plate with a 75mm X 75mm VESA hole pattern. The rubber ball is positioned 0.88" from the center of one edge.

Hole Pattern : 75 x 75mm VESA
 
Plate Size:3.625" x 3.625"
 
Ball Size: C Size (1.5")
 
Weight Capacity:
Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs
 
Materials: Marine-grade aluminum