This is my 2nd singing bowl, that I bought to harmonically match the 1st one that I also bought @Thomann, the the Peter Hess phKS9-G. I am a professional musician and Holistic master therapist; Sound quality, the right frequencies, balanced harmonies are what I was looking for. And this Thomann T.Z.S. bowl 1700g matches in perfection with what I was looking for. Not to heavy, great quality, long vibration, similar frequency to "OM" (C#)... outstanding! I use it for self healing; healing others; to create music. Thank you Thomann!!!!! I am very happy with all!