Hi all, I think this might be of interest to some of you.
I have previously measured the internal circumference (or perimeter) of the medium size “Cable Clamp”: At it’s smallest (closed fully tight) it appears to be almost exactly 4 inches (approx. 10.16cm) perimeter. At it’s largest (closed only one click tight) it appears to be almost exactly 6 inches (approx. 15.24cm) perimeter. Due to it size, the medium size “Cable Clamp” is the most often recommended size for clamping of the penis.
And for the internal circumference (or perimeter) of the large size “Cable Clamp”: At it’s smallest (closed fully tight) it appears to be almost exactly 6.75 inches (approx. 17.14cm) perimeter. At it’s largest (closed only one click tight) it appears to be almost exactly 9.25 inches (approx. 23.49cm) perimeter. The large size “Cable Clamp” might be suitable for “behind the balls clamping”, but that activity in itself is not recommended to be done.
Regarding the internal circumference (or perimeter) of the small size “Cable Clamp”: At it’s smallest (closed fully tight) it appears to be almost exactly 1.75 inches (approx. 4.44cm) perimeter. At it’s largest (closed only one click tight) it appears to be almost exactly 3 inches (approx. 7.62cm) perimeter. The small size “Cable Clamp” has been said to be useless due to it’s small size, but I can think of a potential use.
I hope that information will be useful and enable you to make an informed choice before buying a “Cable Clamp”.
No, "mch" does not stand for "my cock's huger!"
... although it may do in the foreseeable future! :D