Sterling Silver Bow Necklace, Sparkling Crystal Bow Charm Necklace, Bow Bow Necklace By Potiega Jewelry New 925 Sterling Silver Bow Necklace Poshmark Sterling Silver Bow Necklace By Potiega Jewelry New 925 Sterling Silver Bow Necklace Poshmark. Pieces: 1 piece Includes: A matching box. Material: 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 One Size 15. 7