Iannes, these two holes are designed to attach other bracket, while we do not have the dedicated accessories for sale, you can DIY if you have any needs.
Pauxier Posted at 2018-1-16 15:25
This is not a standard 1/4" unc type thread btw. I was trying all of my accessories and the threads on the cs are more fine.
Yes, that's why I was trying to think of how to use them