Every order is kept separate and meticulously labeled and handled. From the time your box arrives at our facility, it is logged, LCDs are counted, and your box is placed in line for testing. Your LCDs are never combined, added to, or tested with, another order. We HIGHLY recommend using stickers, blacklight pens, or anything else you can think of, to uniquely mark your LCDs. This way you have peace of mind knowing your LCDs are your LCDs.