Excellent Condition: Mademoiselle Ai MI Tuner Set The MI Tuner is a set of tuning forks developed by Mademoiselle Ai, emitting specific frequencies (such as Solfeggio frequencies) and used for relaxation of body and mind, purification of space, and energy balance adjustment. It is a healing tool. [Set Contents (12 Forks)] 132Hz, 153Hz, 264Hz, 396Hz, 417Hz, 444Hz, 528Hz, 639Hz, 741Hz, 852Hz, 888Hz, 2160Hz Other accessories are as shown in the images. Condition: Excellent Almost unused. Please ask any questions in the comments. Thank you.