The Crystal Tones Singing Bowls are of extraordinary beauty and pure frequeny. They are also very expensive, but I fell in love with the sound the first time I heard them and thought I would love to own a set one day. That dream did come true when living in New Zealand. I owned a set of two bowls that I bought via Annie Jameson who has also produced some lovely soothing albums with these instruments.
Main website US - Crystal Tones Singing Bowls: http://www.crystalsingingbowls.com
The ones I used in my videos are:
Blue bowl: 8” Egyptian Blue Alchemy Crystal Bowl C# -45Hz
Clear bowl: 6” Platinum Alchemy Bowl G# -45Hz