From Manufacturer
The Xtender X-TS 2 SHOT Kit is designed for ENG or mid-size cameras. It includes the X-MC-100 2" XTENDER Straight Arm with the CSM-20 Shoe Mount, LCSM-10 Locking Camera Screw Mount, and MM-10 Monitor/Light Mount.
The straight arm is great for supporting lights, small monitors, or digital recorders up to 2" away from the camera. It mounts via a 1/4"-20 female or male mount to an accessory and a 1/4"-20 or shoe mount to a camera.
The Xtender X-MC-100-10 Kit includes the CSM-20 shoe mount and the Xtender Micro Arm, and supports lighting units, small monitors, or other accessories. You can attach the unit to the shoe mount of your video camera or DSLR.
The Xtender LCSM-10 Locking Camera Screw Mount connects the Xtender articulating or short arm to the camera's 1/4-20" mount.
The Xtender MM-10 Monitor / Light Mount connects camera accessories like Zylight light panels or lightweight video monitors to the upper portion of the Xtender articulating arm. The mount can also be used to connect accessories to the camera's 1/4-20" thread mount.