These extension chains are made of premium iron material, classic, comfortable to wear, can match your clothes, perfect for using on necklace, anklet, bracelet and so on, making the extension chains achieve your desired length to suit you well. Features -Color:Assorted Color -Material:Iron -Size:4.50X0.40X0.70cm/1.77X0.16X0.28in - These chain extenders are made of sturdy iron material, high polished surface, - Colorful color, which will make you stand out and show your personal style with the jewelry making chain. - Simple and durable, fashionable and versatile, the extension chain is suitable for various styles of jewelry DIY, very practical. - Easily add the length of your jewelry, for necklaces, bracelets or anklets with this extension chain. - Perfect gift for Anniversary Day, Valentines Day and Birthday to your girlfriend and wife. Package list: 400 x necklace chain extender