Polished, stainless steel cover plates, Recessed German Silver reed plates, Stainless steel reeds for deep resonance, ABS comb, Rounded corners to feel great, Submersible for rinsing clean. The Pulmonica is a specially tuned pulmonary harmonica for non-musicians that produces unusually deep, resonant, meditative sounds that are felt gently pulsing the lungs simply by breathing. Plus, it always sounds soothing, unlike any similar looking harmonicas, and provides variable resistance for use. Good for people with COPD, asthma, cystic fibrosis, or others with breathing issues, or anyone who wants to improve their breathing, such as singers, musicians, and athletes. The Pulmonica allows everyone to include conscientious belly breathing and soothing, meditative sound in their daily routine. Instructions for use and a carrying case, cleaning cloth, and care recommendations are included. Sustained belly breathing has been promoted for thousands of years across many cultures as an achievable method of bringing more air into the lungs and more oxygen to the body and mind than with chest breathing. Yet, almost all of us are chest breathers by mid-life. To learn to be belly breathers, we need sustained practice. The Pulmonica makes that practice easy by providing positive feedback three ways: (1) deeply resonant notes and chords, (2) always in tune and sounding harmonious and (3) gentle pulses that are often felt in the lungs and sinuses. For interested musicians, the Pulmonica is tuned to LLG, uses spiral tuning, and produces the complete diatonic chord scale (G, Am, Bm, C, D, Em, F#dim) for over two octaves. The Pulmonica can serve as a wonderful rhythm instrument in the Key of G. For soloists, it is more challenging because the reeds, gaps, and profiles are set to optimize pulmonary usefulness, rather than musical playability. Invented in the USA by Harmonica Techs, handcrafted in Germany by Seydel, the world's oldest harmonica manufacturer.