The Metal Earth B-18 Lancer Metal Model is based off a supersonic variable-sweep wing, heavy bomber commonly reffered to as a bone due to its "B-1" designation. Primarily used by the United States Air Force. It is one of three strategic bombers in the U.S. Air Force fleet as of 2018. The Metal Earth B-18 Lancer Metal Model can now be part of your personal Air Force today! Ages 14 and up.