Swan, Set of 12pcs, 10 Holes Harmonica, 12 Key# ABCDEFG Ab Bb Db Eb Gb Brand new 10 holes harmonica, Blues harp, Set of 12 harmonicas Stainless cover plate coated with chrome, solid brass reed plate, plastic comb Key of ABCDEFG Ab Bb Db Eb Gb Perfect 10 holes set collection for music play. Simple plastic packages, one package for each.