Nikon Multi-Power Battery Pack MB-D11

I purchased this in April of last year, but the camera broke, so I am selling it as I will not be using it. There is a tear on the exterior, but it was already torn when I purchased it. Please check the photos.

Below is the product information. Please review it.
It can be powered by two types of sources (1 x Li-ion rechargeable battery EN-EL15, or 6 x AA batteries [alkaline/lithium/nickel-metal hydride]).
By loading an EN-EL15 into both the D7000 body and the MB-D11, approximately 2100 shots (CIPA standard compliant) can be taken.
It is equipped with an AE/AF lock button, main command dial, sub-command dial, shutter button, and multi-selector, which are convenient for vertical shooting.
The magnesium alloy body, sealed to the same standard as the D7000, provides high dust and drip resistance.