The crown chakra crystal singing bowl is tuned perfect pitch B note on 432 hz. TOPFUND crystal singing bowls made from highest quality quartz and have translucent white. The crystal singing bowl comes with a heavy duty carrying case. The crystal singing bowl set is housed in a scratch-proof crystal singing bowl bag to prevent pollution and easy to access. A cowhide crystal singing bowl mallet suede striker and O-ring are packed in bundle pocket.