Generally speaking, optically clear bowl is what is called a clear 'flat-bottomed' bowl. The same as the frosted bowl, each clear flat bowl also matches an o-ring, so that it could sit freely and can be played hands-free. Optically Clear bowls are not as loud as frosted bowls as they have smaller walls, however, they have a much longer sustain and a clearer tone. If you are playing bowls personally, clear bowls would be a great option for you. We suggest buying a clear bowl that is at least 8 inches in diameter, as smaller clear bowls can be difficult to play.

Optically clear bowls are made from 99.9% pure Quartz crystal, a naturally occurring element. The crystal is processed and any impurities are removes as the quartz is fused into shape from a pure quartz sand.  The fused crystal is heated to a temperature of over 4000 degrees and blown into shape in a process similar to hand blown glass.  The result is a strong clear bowl with an amazing tone and great sustain. The process in which the clear bowls are manufactured general puts them in a lower octave range than bowls of the same size in the frosted style.

Any questions, just contact us! PEACEFUL NATURE TECHNOLOGY CO.,LTD will try our best to satisfy you.