These Raven adjustable designed  jewelry is made of from 925k sterling silver which has a hypoallergenic quality, so people with metal allergies can wear it without experiencing any skin irritation. During the completion of the jewelry, we create antique look and texture by oxidizing the silver. For the eyes of the Raven, I use zircon stones and bronze around them to look like realistic effect. It is handcrafted in 925k Sterling Silver. So it's Water, sweat, heat resistant (No Discoloring or Tar Unique Hand Cast Silver Bangle, Unique Silver Hand Cast Bangle, Unique Polished Cuff Bracelet As Gift, Unique Polished Cuff Bracelet Gift, Unique Polished Finish Cuff Bracelet Gift, Unique Polished Cuff Bracelet For Gift, Adjustable Symbolic Sterling Silver Cuff Bracelet, Hand Forged Adjustable Sterling Silver Bracelet, Adjustable Oxidized Jewelry For Collectors