Athenacast Chain - Rectangle Ring. This high-quality chain features rectangular-shaped rings, each connected by a small circular ring with two figure 8 links. Cable chain is one of the most popular chains because of its versatility in jewelry making. Use it to create a layered chain bracelet, chain tassels, embellish it with charms, and more. The Athenacast Rectangle Ring chain has 4.5x15mm links and comes in a 3-meter length.