White Mother of Pearl Butterfly Necklace, Butterfly Necklace, Butterfly Shell Butterfly Pearl Necklace 2pcs Butterfly Pendant Necklace Butterfly pendant necklace, Stone Natural Freshwater Mother of Pearl Butterfly Necklace Alarita. Pieces: 1 piece Includes: A matching box. Material: Synthetic Pearl,925 sterling silver 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 (Measurements by inches) & Size Conversion Size Chain length Extension chain length One Size 15. 7 2