Wilson The Duke NFL Metallic Edition Football - Official Size, Gold OFFICIAL SIZE: Official regulation size for High School and College Football, ideal for ages 14 and up. METALLIC FINISH: Metallic high-performance composite cover provides a premium, tacky feel with a natural shine THE DUKE: This trophy ball bears "The Duke" inscription, inspired by the official on-field football of the NFL COLLECTIBLE: This official NFL recreational ball is perfect for collector's looking to commemorate special football occasions NFL OFFICIAL: Wilson is the official football of the NFL, and the only official football in the league's history, a tradition passed down from generation to generation