ALL METAL ARM - 3.5" metal arm provides solid support while minimizing vibration. Dual thumbscrews allow you to quickly loosen/tighten the ball and socket joints to allow unlimited positioning. This arm will not break, bend or boogie on you. It will stay right where you left it.
All the stuff I ordered works great. Initially I ordered the short arm mount. Decided that the long arm may be better so I ordered that. My one complaint would be that I was unaware that this particular arm also needs a different clamp. So I had to order that as well. A little frustrating. I work for a software company that does auto parts management. Having a simple pop up on your site to let the consumer know about a related and/or required part would be nice. At any rate, I went back to using the short arm mount for now. Stays still, easy to mount and use and my Harley hasn't beat it up yet! Thanks Tackform!