Gray Water Ops is ready and waiting to help you create stunning branded challenge coins, complete with their patented NFC chip integrations. To learn more about this new 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