This 4.4 mm Bismarck chain is crafted from environmental copper and finished with resilient 18K gold plating for a polished, retail-ready look. Hypoallergenic, nickel-free, cadmium-free and water-resistant, it ensures dependable batch quality for bulk buyers. This necklace is Fallon Jewelry, ideal for wholesale jewelry sourcing, premium plating, and popular resale items.