Svaram Glassophone (A 432 Hz)This listing includes the Glassophone instrument and a carrying case. It does not come with a mallet as this instrument is meant to be played with wet hands. The Svaram Glassophone is a miraculously beautiful instrument comprised of 9 quartz crystal tubes held in place by soft rubber rounds. This allows for a sturdy instrument with enough flexibility to provide extraordinary resonance. Simply wet your hands and gently rub the crystal tubes. It