RAM® Composite Ball Adapter with AMPS Plate

The RAP-B-347U base consists of a 1 diameter rubber ball connected at right angles to a 2 x 1.7 square base. The base has four pre-drilled holes at

RAM Mount RAM Composite Universal Marine Electronic Mount

RAM 2.5 Round Plate with the AMPs Hole Pattern with B Size 1 Ball - RAM-B-202U

25mm / 1 inch Composite AMPS Adapter Plate for Industry Standard Dual Ball Socket mounting arms - AliExpress

25mm / 1 inch Composite AMPS Adapter Plate for Industry Standard Dual Ball Socket mounting arms

This component belongs to the Tackform Enterprise Series which is based on a large 1 rubberized ball. The entire series consists of various bases

Diamond Drill Base Adapter fits AMPS Hole Pattern. Metal Construction with Rubberized Coating on Ball. Compatible with RAM and 1 Ball Systems from

RAM® Tough-Claw™ Large Clamp Double Ball Mount with Round Plate - RAP-401-202U

Ram Mount Double Ball

RAM® Ball Adapter with AMPS Plate for Garmin GPSMAP 620 & 640 - RAM-B-347-G4U

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The RAP-B-238-A-347U consists of a B size 1 ball on a diamond plate with short arm and square AMPS plate.

RAM® Composite Double Ball Mount with Diamond & AMPS Plates

RAM Mount Dashboard Mount wBacking Plate f8 Tablets wCases RAMB101B2TAB12U – El Capitan Marine & Fishing Center

AMPS Holder 17mm Ball Receiver – Tackform

RAM® Composite Drill-Down Double Ball Mount with Rectangle AMPS Plate - RAP-B-139U

What size is the ball mount on a Garmin GPS and how do I find a compatible mount?