It is composed of 2 height riser, a sliding rail block and two 15mm rods.
This Rail System has a central Tripod Mounting plate that makes a perfect balance between the camera and the front mount accessories (35mm Adapter/Mattebox/Follow Focus).
Made of aluminium alloy, it can support the large variety of smaller cameras and bigger cameras as well.
Quick Release plate that enables the quick attached of the camera and easily slides into the adapter.
1/4" & 3/8" threads on the bottom to mount to any tripod or rig.