Hohner 595 Blues Midnight Harmonica with 3-Pack, Holster, Instruction Booklet and DVD, and Cloth Keys of C, G, and A 10-hole diatonic harmonica with Custom -Inch Chicago style-Inch tuning from Hohner's vaults Trademark blue plastic comb allows for slightly brighter tone than standard black plastic Long-lasting reeds with thicker reed plates for consistent tone Patented Acoustic Cover plates that allow for greater volume and projection Includes: 3-Harmonicas (Keys of C, G, and A), Leatherette Harmonica Holster, Instructional Booklet & DVD, and GoDpsMusic Harmonica Cleaning Cloth