RAM-D-254U RAM Mounts Round AMPS Plate with D-Size 2.25-Inch Ball

RAM Mount Round 2.5 inch dia Round Plate with 2.25 inch D-Ball RAM-D-254U

RAM-D-202U RAM Mounts Large 3.68-Inch Dia Round Plate with D-Size 2.25-Inch Ball

RAM Mount 75x100mm VESA Monitor Plate with 2.25 inch D-Sized Ball RAM-D-246U

Fish Finder & 1" Ball Mount with Aluminum Long Arm, AMPS Round Plate for RAM ...

RAM Mount 3.68 inch dia Plate with 2.25 inch Ball RAM-D-202U

RAM Mount VESA 75mm Square Monitor Plate with 2.25" D-Ball RAM-D-2461U