Box chain offers geometric simplicity, luxurious weight, a sleek and uniform appearance, and unobtrusive support when the focus is on pendants, charms, and multiple link or bead stations. This chain is made from round .925 sterling silver wire rolled flat, and then folded into square or rectangle-shaped links just slightly larger than the flat link's width. In larger, more elaborate varieties, the links can be stamped with designs or made of openwork filigree. This delicate 1mm ready-to-wear 18" box chain comes with a 5.5mm spring ring clasp and two closed jump rings permanently soldered to the chain with fold-over crimps. It's a subtle but upscale showcase for your lightweight artisan-made pendants or multi strand jewelry. Note: silver chain is more fragile than steel or bronze in a similar gauge, so treat it with care to help avoid crushing or breakage. Charm pictured for illustration purposes only, and does not come with the chain. Stamped 925.