I bought this clamp because the main arm is longer than other similar looking clamps. I am using it with an Alesis SamplePad Pro . which is quite a wide item and I needed the extra length and angle to have suitable clearance between the unit and the stand I mounted it on. Also the fact that both end of the clamp rotate in two planes means that I can position the SamplePad exactly where I want it in muy set up and at the angle I want it. Its not a cheap item but I coudnt find any other model of clamp with the dimensions and rotating facilities to do the job I wanted. Very Very versatile and top quaity. Perfect grip, no slipping , hold everything secure.. No worries .. which is what you want from your gear.