RAM® 雙插座臂（附鎖緊螺母）- D 尺寸長型

The spring mechanism keeps the sockets tight and secure, and the jam nut makes it easy to lock in position without tools. I've used it to mount a tablet in my truck, and it holds steady even on rough roads. Exactly the kind of sturdy support I needed.

My old mount was getting flimsy, but this double socket arm with the jam nut locks my device rock-solid even on bumpy roads. The single spring inside keeps both sockets engaged perfectly.

I'm replacing the worn arm on my GPS mount and this long double socket is rock solid with zero wobble, even with the spring loaded to keep tension. The jam nut locks down tight and the push-button release on both sockets makes swapping my 2.25" ball bases quick.