RAM® ラウンドポストクランプマウント ラウンドプレート

The double socket arm lets me angle my phone exactly where I need it without any sagging, even after a full day of bumpy trails. Swapping it between the 1.25" and 1.875" rails on my two ATVs took less than a minute. Solid purchase for the price.

The double socket arm gives me so much flexibility for positioning, and the clamp fits perfectly on my 1.5" rail. I've been using it daily for a month and it hasn't budged an inch.

Finally a mount that actually stays put on my boat's railing, the clamp grips 1.25" pipe perfectly without any wobble. The double socket arm lets me angle my phone exactly where I need it, and the round plate base feels rock solid even in choppy water.