The box chain is anything but simple. It's the epitome of symmetry. The design, consisting of interconnected spherical links, has a natural but distinct visual appeal. The circular box chain is both comfortable and durable, and it can support the weight of additional hardware while also merging in with other chains for limitless styling options. Box chains are among the most long-lasting necklace chain links available. The box shape of the links provides more stability than a standard link, and a broken link may be removed without affecting the aesthetic of the necklace.