This super clamp is universal that can fix onto any shaped body like cameras, lights, umbrellas, hooks, shelves, plate glass, cross bars,etc.
 
Super Clamp Comes with standard 1/4"-20 and 3/8"-16 thread. Can be mounted virtually anywhere.Non-slip rubbers on the inner side provides strength and stability.
 
Minimum opening diameter : 13mm
Maximum opening diameter: 35mm