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 Shiny Coin Tag Connector Charms for Bracelet
10pcs of 925 Sterling Silver Lotus Flower Bead Caps Spacer for Bracelet Necklace
10pcs of 925 Sterling Silver Floral Leaf Daisy Bead Caps for Bracelet Necklace
10pcs of 925 Sterling Silver Closed Jump Rings, Round Circle Link Connector
10pcs of 925 Sterling Silver Leather Cord End Cap Connector w/ Spring Ring Clasp
10pcs of 925 Sterling Silver Closed Drop Jump Rings 925 Silver for Bracelet
