Monogram Pendant Necklace, Silver Monogrammed Necklace, Vine Preppy Monogram and Chain are Sterling Silver 925, .7 mm thick Chain comes in 4 meassurements: 14", 16", 18" and 20" Monogram Any 3 Initials, Last Name Initial goes in the middle Monogram Pendant, Monogram Necklace, Monogrammed Necklace Best quality