For rod support / rail system, It used to mount shoulder pad / battery pack block to back of rail system in general. It works if you use it to mount controllers or other accessaries on to your setup.
It can extend application of rod support rail system. Attach shoulder pad, shoulder balance, USB follow focus,magic arm, LCD monitor...If you have more gears, the 4 rods clamp is helpful.

Specification:
Riser Rod Clamp / Rail Block
Rising heighth: 25mm
Fits standard 15mm diameter rods
Material:solid aluminum
Anodized black finish
M4 screw (L type) lock
Rod distance 60mm (Rod center - Rod center)

　 Package Contents:
1x Riser Rod Clamp / Rail Block