This is a SUZUKI harmonica set with a case, containing four harmonicas (A, Am, C, and C#). - Brand: SUZUKI - Number of harmonicas: 4 - Keys: A, Am, C, C# This was purchased by my father, and it's unknown how much it was used. There are small scratches, but it's unknown if they produce accurate sounds, so please understand this before purchasing. Thank you for looking.