The
Deluxe Power Grip 
for Canon EOS 6D Mark II DSLR Camera allows the EOS 6D Mark II to be powered by two LP-E6N batteries, effectively doubling your shooting capacity. The BG-E21 also provides a comfortable vertical grip with an additional shutter release and scroll wheel for easy access to the camera functions when shooting in the vertical orientation.
Key Features:
Effectively doubles shooting capacity
Holds two LP-E6 batteries
Improves stability
Vertical shutter release & scroll wheel

Kit Includes:
1. Deluxe Power Grip
2. One Year Warranty Card