This happens during the production process. The main reason is that the module is too small for stamping 925 or 990. What is Sterling Silver .
20pcs of 925 Sterling Silver Small Locket Bails Pendant Charm Bulk Bails
10pcs of 925 Sterling Silver Small Lotus Leaf Connector Charms for Bracelet
925 Sterling Silver Oval Olive Quality Tag Connector Necklace Bracelet Finding
925 Sterling Silver Rectangle Oval Quality Tag Connector Charm Jewelry Making
2pcs of 925 Sterling Silver Tribal Shiny Leather Cord End Caps for Bracelet
20pcs of 925 Sterling Silver Tiny Heart Jump Rings for Love Bracelet Necklace
