Top Plate 1975 is compatible with the original top handle, and it does not do any harm to the functions of the original top handle. Battery Back 1547 can attach dual 15mm rod for Anton Bauer QRC, Switronix, RED, Blueshape batteries. V-Lock Assembly Kit 1846 is utilized for batteries with V-Lock ports to provide power supply for long time shooting. 15mm Rod 1050 that attaches Battery Back 1547 for power supply could attach Counterweight 1890 to maintain kit balance. Shoulder Pad 1954 could be used for run-and-gun operation, and it could also be switched quickly between run-and-gun mode and tripod mode. Extension Arm with Arri Rosette 1870 could be adjusted in length for a more comfortable shooting experience. Wooden Grip 1891 is used for gripping experience based on ergonomics. 15mm Rod 1051 is compatible with follow focus, lens support, and matte box, etc. FS7 original extension arm could be attached to Arri rosette on the right of Shoulder Pad 1954 to control the camera.