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 .
2pcs of 925 Sterling Silver Oval Spring Ring Clasp w/ Rhodium Plated Gold Plated
This spring ring measures 5mm, or 7mm including the 'closed', loop attached. I prefer the closed loop because, since the loop is made of thin wire, it
20 Pcs - Rose Gold Filled 5mm Spring Ring Clasp, Made in Italy, RG4
4 X 3 Mm Gold Plated Chain Small Size 9016
Buy Round lobster clasps online : Sterling Silver 925 Gold-plated Spring Ring 6 mm - Com-forsa S.L.
Gold Filled Round 14K Spring Ring Clasp
Silver Spring Clasp
18k Gold Lobster Clasps, Gold Findings, Necklace / Bracelet Connector, Solid Gold, DIY Accessories, 11 Mm Size, Price per Piece
925 Sterling Silver Heart Push Clasp, 14 mm Gold Plated Spring Heart S – A Girls Gems
5mm Spring Clasp
Jewelry DIY Findings Craft Accessories Gold Plated Spring Ring Clasps for Necklace Bracelet 10 Pcs
Silver 5mm Clasp
Sparkle and shine with this unique link bracelet. Crafted in luminous yellow rhodium-plated sterling silver, this bracelet features an intricate
Fancy Link Bracelet in Gold Plated Sterling Silver with Big Stylish Spring Ring Clasp