The Zwiss cage is built around a DSLR Baseplate to accommodate just about any DSLR camera's height (with or without battery grip). The cage also offers dual handgrips, a top handle for low-angle shots, and a pair of standard 15mm rods for attaching a follow focus or a matte box.
All over the top Zwiss Plate of the cage are 1/4"-20 and 3/8"-16 mounting holes for attaching accessories in countless configurations, for convenience and optimal balance: audio receivers, lights, monitors, and of course, the included Zamerican Arm. Just attach the included Zicro Mini to one of the many 1/4"-20 threads, and then you can connect the arm easily by sliding it into the Zicro's 15mm connection and twisting the thumbscrew.