Quantam Pole Mount Clamp - QBC for use with all Quantum Battery models (except Qpaq-X).
Fits both square and round poles.
SQUARE 5/8" (16mm) to 1 1/16" (27mm)
ROUND 3/4" DIA. (19mm) to 1 1/2" DIA. (38mm)
Reviewed by 4 customers
This clamp does the job it's designed for, clipping on the battery pack is easy. I use it on a tripod leg and for the size of the tripod legs it just fits. It would be nice if this clamp was available in a little bigger size. I use large size tripods as I do nature photography with big glass.
I use these clamps to hold batteries for speedlights on light stands. They clamp on very securely and all of the batteries I have used with a belt clip work perfectly with this clamp. If you can't tell from the pics, there is a little notch in the base that holds a round pole in the middle of the base so it won't rotate or slip once tightened.
This clamp works great and is easy to use but I felt it should have been closer to $10.
This clamp does a great job holding my quantum battery pack to the light stand and it is a quality piece of hardware. But, for the life of me I cannot see why it costs almost [$]--Take my advice and find a cheaper work-around.