Sweet Heart Mama Necklace Measurements: 18" chain. 19mm tall charm Chain Material: 14k gold filled or sterling silver Charm Finish: 18k gold plated or surgical steel. Pressure bonded and tarnish resistant Charm Base Material: High Quality Surgical Steel Nickel Free and Lead Free Hypoallergenic, Made for Sensitive Skin Packaged on our signature MAIVE branded necklace cards and jewelry pouches or acrylic boxes