Gray Water Ops is inviting you to place your order and become one of the first in the world to get their patented custom NFC challenge coins. To read more about this revolutionary technology, visit https://www.graywaterops.com/nfcchallengecoins

Gray Water Ops, LLC 5825 Tyler Dr, Harrisburg, PA 17112, United States Website https://GrayWaterOps.com Phone +1-717-412-1402 Email Keith@GrayWaterOps.com