Our frosted crystal singing bowls have a beautiful translucent white surface,they are produced with pure quartz crystals of the highest quality in Topfund factory. There is a easy way to compare the quality of the highest quality frosted quartz singing bowls with lower quality sound bowls by looking, let the same tone crystal bowls stand together and the very white sound bowl must be made from a cheaper and not very pure quartz. Quartz crystal vibrations sound energy comes from pure quartz, crystal sound healing and chakras meditation is also base upon purity quartz energy. Topfund only produce the highest quality quartz crystal singing bowls and accessories with the highest quality standards in the world. We have sorted our singing bowls by both size and by the dominant note produced by the sound bowl. While larger singing bowls tend to produce notes from deeper octaves, all size categories contain a variety of possible notes and some notes are more common in certain size categories. We are constantly updating our singing bowls inventory so please subscribe our store to check for note and size availability. Your crystal sound bowl is a high-quality fragile instrument, but with proper handling it can remain beautiful and viable for a lifetime. Always handle your bowl with the utmost care and take special precautions while transporting or storing it. It is also imperative that appropriate strikers, rubber mallets, and O-rings are used when your quartz crystal bowl is played. We suggest that the crystal singing bowls are always played at a minimum of 10 inches from a person’s head. Also, avoid playing these instruments within 10 inches of each other as their intense vibrations can lead to shattering or breakage.. Every single topfund singing bowls and crystal singing pyramids comes with suede striker or rubber mallet and O-ring for free for sound healings chakra meditation and yoga practice .