For rod support / rail system, It used to mount front side handles to front of rail system in general. It works if you use it to mount controllers or other accessaries on to your setup.
It is used to extend left and right application of rod support / rail system , it can extend application of rod support rail system. Attach handle grip, shoulder balance, USB follow focus, follow focus,magic arm, LED light, flash, LCD monitor...If you have more gears, the 4 rods clamp is helpful.
