Natural cotton crystals in some natural crystals,Ice crack,Mine shortage, the beads are not round and the artificial damage caused by the grinding process, and the bracelet single beads will have a small size difference, which is normal, not a quality problem.! As the saying goes: "There is no perfect person in gold."It is not easy to be born after the birth of nature for hundreds of millions of years. Please understand the natural crystal, love the crystal.! Every crystal is not perfect. Every crystal is unique in the world. Everyone with crystal is lucky.! Everyone should look at the crystal with a look of appreciation. If you like crystal, you should like it.. I hope that every piece of crystal can bring good luck to everyone!