The earrings are 2.75 inches and hang approximately 3 inches with wire. The earring wire is sterling silver. They will come with back stoppers. The necklace is 18 inches long and closes with a lobster clasp. The pendant is a high quality metal which is lead, nickle and cadmium free. The beads are a mix of palm seed and acai eco-friendly beads from Peru. If you have any questions please feel free to contact us at anytime.