United States Air Force Challenge Coin Display with Black Firearm Finish Fasteners Engraving represents United State Air Force and U.S.A.F. logo 2 inch coin to 1  inch coin Adapter Ring Works for 1 5/8 inch coin. Elegantly made from laser cut acrylic (not molded) Features Black Firearm Finish decorative fastens [coin not included] Made in USA "hex key included