Here Army Surplus World we carry a variety of air force challenge coins. The U.S Air Force Veteran challenge coin is made of Minted in a brass alloy and finished in bronze, this coin is imbued with enamel on both sides. It measures 1 3/4 inch (44mm) Round. Each coin comes packaged with a detailed header card that describes the mission and history of the U.S. Air Force. This item makes a great gift for all the U.S. Air Force veterans embody the commitment to victory that has made the U.S. Air Force the world's most dominant aerospace force for more than 60 years. Order the U.S Air Force Veteran challenge coin from Army Surplus World Today.