Built in B-flat alto like the B-flat side of the French horn, the King 1122SP marching French horn offers a rich, warm alto voice. It has a unique bell throat that creates great projection and allows for an excellent low register while maintaining upper register stability. 1st slide thumb saddle allows for easy intonation adjustments. Nickel plated pistons provide smooth, quick action and unmatched durability. Heavy duty marching case. Silver-plate finish.