3-3/8" Ball Bases & Mounts "E Size"
RAM Mount Mixed Combination Pin-Lock Security Nut & Key Knob f/2.25"/3.38" Diameter D/E Size Arms
RAM Mount Pin-Lock Security Kit f/ 2.25"/3.38" D/E Size Mount and Gimbal Bracket
RAM Mount RAM® 100x100mm VESA Plate w/Ball