5.1mm round double-link cable bulk jewelry chain. Approximately 5-meter (16.4 feet) rolls. Soldered brass links. Gunmetal chain works great for a wide variety of mixed-metal and fashion jewelry. Bulk chain by the spool makes a great base for free-form beaded chain necklaces. Many jewelry makers use jump rings or split rings with clasps to finish the ends. Occasionally, the plastic spool is damaged in shipping. This should not affect the usability of the chain. Black gunmetal color may range from gun blue to matte dark gray to shiny black metal.