RAM® Tough-Claw™ Small Clamp Mount with Garmin Spine Clip Holder RAM-B-139U-A it is important to verify

it is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size

The RAM-304B-VP is a 1/2" NPT post with a drill-down base for vertical surfaces

3mm and the thread length is 10

B size arm with a magnetic base and a self leveling cup holder

or a mounting drill-down base

RAM® Tough-Claw™ Small Clamp Mount with Garmin Spine Clip Holder RAM-B-139U-A it is important to verifyThe RAM Spine Clip holder is a mount adapter that easily clips into the integrated spine connection on a wide variety of Garmin devices. With the RAM Tough Claw base, you can easily attach Garmin spine mount to round, square, and odd shaped rails and bars ranging from . 625 to 1. 14 in outer diameter.