SmallRig Super Clamp Mount with 1/4" Screw Ball Head Mount 1124 is made of lightweight aluminum alloy. This super clamp can mount onto anything like cameras, lights, umbrellas, hooks, shelves, plate glass, crossbars and even other super clamps. The maximum opening of this super clamp is 40mm while the minimum is 15mm. It could attach and detach from a monitor quickly and the position of the monitor is adjustable as per your needs during shooting.