Hohner M2011BXL-E Marine Band Thunderbird Diatonic Harmonica, Key of LE Key of Low E Special new reed profiles for fast response and high volume even at extremely low pitch. Conical lower cover design prevents reed rattle. Triple-coated laminated bamboo comb (patented), an innovative renewable natural material. Covers and reed plates fitted with Philips head screws permit easy assembly and disassembly and facilitate maintenance.