10 Antique Silver-Plated 19x13mm Heart Connectors. These Heart Shaped Connectors have a loop on either end and will work great with earrings, bracelets, or necklaces. You can use these jewelry connectors to create links in your design. They are sold in packs of 10 and are approximately 19mm long from loop to loop, 13mm wide, and 2mm thick. The loops have an inside diameter approximately 2.0mm.