This harmonium, weighing only 16.5 lbs., is a great portable instrument. The bellows provide outstanding airflow to the 29 keys, from F2 to A4, resulting in very good sound volume. Some units may have an extra, non-playing, upper "B" key for a spacer. The following cases will work for the HMY fixed body Harmonium: TOCA Cajon Bag, Black (Code T-CAJB) or the Tabla Case, Economy Nylon, Thin walled single layer nylon case (Code NCTE).