Gray Water Ops can render stunning challenge coin designs for you and include an NFC chip in the center of the coin, that allows the coin to DO something like transfer contact info or open a webpage on the receiving phone. Learn more at 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