Pieces: 1-piece Material: Synthetic pearl, Alloy, Gold-plated, CCB Care instructions: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Product measurements:Style A/B/C: Chain length 3.5 in, Weight 0.2/0.4 oz (4.8 g/4.7 g/10.2 g)