PENTAX Battery Grip D-BG4 For K-7, K-5, and K-5II. The exterior has minor scratches from use, but there are no issues with its functionality. Please check the photos. I mainly used the battery adapter, so there are no problems, but the dry cell battery adapter has traces of leakage. It can still be used if you insert dry cell batteries. I used it with a K-5, and there were no problems with attaching, detaching, or operation. Please purchase only if you understand that this is a used item.