The King SB20SP mellophone is a highly responsive instrument that provides a clear alto voice that blends well. Its open design and 10" bell provide maximum projection and clarity in articulation. 1st slide thumb saddle allows for easy intonation adjustments. Nickel-plated pistons provide smooth, quick action and unmatched durability. The heavy-duty marching case is designed to be stackable to minimize space requirements. Available in clear lacquer finish as model SB20 or in silver plate as SB20SP.