Hello, These are all handcrafted with local artisans in our workshop. There can be slight irregularities but that is because no two pieces are similar like casted jewelry. The lock is Italian with very good movements. Twisted wire around the Larimar Stone Larimar, also called dolphin stone or blue pectolite, is an excellent earthing stone?it allows you to connect on a spiritual level to all things natural.. Feedback If you are satisfied with us please give us feedback and tell others about our shop. If you are not satisfied please contact us before leaving us any negative rating or feedback. We will solve all the issues with your package within 1 working day. Thanks Have a Nice Day