Approximately 5x18x3.5mm TierraCast® Britannia pewter bone charm jewelry connectors. 1.8-2.2mm inner diameter loops. Two sided. Antiqued silver plate is a thin surface layer of silver that has been darkened to provide a "distressed" (oxidized) appearance. These charms work wonderfully for giving designs an antique and vintage feel. Charm measurements include loops. TierraCast Safety Compliance Info.