The gold plated plastic comb, black Greblon coated covers and extra thick (1.05 mm) reed plates make the Cross Harp a stylish model with a big sound." The Hohner Cross Harp is one of the new Hohner MS Diatonic Series. "The initials MS stand for Modular System, an integral concept in harmonica design from Hohner. It consists of a coordinated system which allows for improved playing and handling and simplified maintenance. This modular concept also enables the player to customize the instrument to suit specific tonal or performance needs