These amazingly detailed models start as a 4” (100mm) square steel sheets and finish as amazing 3D models. Use the easy to follow instructions to pop the pieces, bend the tabs, and connect them at the attachment points. The Messerschmitt BF-109 was a German World War II fighter aircraft that first saw operational service during the Spanish Civil War (1939) and later became the backbone of the Luftwaffe's fighter force. The Bf 109 was the most produced fighter aircraft in history with a total of 33,984 airframes produced from 1936 up to April 1945. Number of sheets: 1 Sheet Difficulty: Moderate Assembled Size: 1.65” x 3.62” 4.13”