Features: 1) Key: C key 2) Material: cupronickel body 3) Types: 16 holes with E mechanism, 16 open holes, 17 open holes, 17 holes with E mechanism 4) Accurate sound quality, beautiful and strong tone 5) Attractive appearance 6) Coating colors: silver, nickel, black, blue, red Outer packing: ABS case / wooden case / light case 10pcs/ctn