Ball chains project a minimalist style. These chains are simple yet adorable chains which consists small metal spheres or balls. These are strung close together with a tiny space in between and are often used in key chains. The most common ball chain accessories are connectors. The end of the connector can surround a metal ball on the other end of the chain which holds it securely, making it look more prominent. Ball chain necklaces are perfect for dog tag chains, identification chains, or simply chains with a pendant attached to it.