These are cowrie shells used for hula. I used them several times when my keiki (child) was performing. I made a quilted case to prevent them from breaking, so I'll include it. They appear to be crack-free, but I apologize if I missed anything. I have cleaned them, but they have been used, so please refrain from purchasing if you are concerned. Thank you for your understanding. Also, I work on weekdays. Even if you leave a comment, I may not be able to reply immediately, but I will respond as quickly as possible. Shipping may be on weekends, but I will try to handle it as quickly as possible, so please be aware of that as well.