10 Antique Silver-Plated 20x15mm 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 20mm long from loop to loop, 15mm wide, and 3mm thick. The loops have an inside diameter approximately 2.0mm.