1. If the bracelet is made of a tiger eye tree that has not been placed for more than three years, then the material is not dry and the bracelet will crack;

2. If the tiger eye tree is not dried in the right way, such as the clinker caused by sun drying and wind blowing, it will also crack after making bracelets;

3. Using other methods to quickly dry raw materials will cause the bracelet to crack after making.