Features: 1.The sound and frequency of 8 inch crystal singing bowl benefits at every atom & every cell. 2.Crystal Singing Bowl include--440HZ crystal singing bowl*1, rubber mallet*1, o-ring*1, case bag*1. 3.We will replace by free if there is any damage or missing during the transportation. Material: over 99.99% Pure American Quartz Crystal Item Size: 8 inch A note Condition: 100% new