"Adams F1 M Custom 045 150 SL, Flugelhorn, Custom series, ML bore: .413"" (10.5 mm), Ø 6.0"" One-piece brass bell, 2 Leadpipes included: 10.2 and 10.5 mm, Wall thickness: 0.45 mm, Weight of the valve section: 400 grams (standard), Trigger on the 3rd...