This is a 9″ Articulated Arm with Rosettes. The advantage of the rosettes is that it locks the arm in the position it is locked in, so it can’t slowly drift down under a load. The trade-off is that it moves in 6 degree steps, but it is still plenty adjustable to get the light exactly where you need it to be. This also comes with a cold shoe mount, and a 1/4″ double female adapter for gender changing, and adds another 2″ top the overall length if used in this configuration. This arm works great with our stackable battery pack/mount, as well as our magnetic mount.