Swan Harmonica Set of 12. 10 Hole, 20 Tone  Diatonic Blues Harp Harmonicas -  Plays in 12 Keys. Chromed Silver & Black. Comes with Luxury Gift Box. 10 Hole, 20 Tone Silver & Black Diatonic Blues Harp Harmonicas - Set of 12 Stainless Steel Shell & Copper Reed Plate with High-quality Resin Comb Cover Plate Plays in Keys A B C D E F G Ab Bb Db Eb Gb Comes with Beautiful Luxury Case - Ideal as a Gift.