Copper Patina Magic Hand NecklaceThis pendant is approximately 2. 5" long, not counting the copper, wire wrapped loop. It comes with a 14" copper chain. The finish is the result of real chemical processes creating real patina. Treat this piece of jewelry as a delicate Work of Art. "Cold Casting" is a term used to describe the process of mixing powder with a resin and applying the mixture into a mold. For this piece, I used real iron powder. For others I use copper, porcelain.. even