Aluminum Twisted Chains Curb Chains, Unwelded, Lead Free and Nickel Free, Oxidated in GoldSize: about Chain: 12mm long, 7mm wide, 2mm thickLightweight, strong and economical aluminum chain is a popular alternative to precious metals. They can be matched with jump rings and clasps, as well as acrylic beads, glass beads, gemstone beads to be popular necklaces, bracelets and belts. They also can be used as separate extenders and dangles.