14kt gold fill wire wrapped tightly around a hand hammered sterling silver bar. 2 1/4" in length and 1/8" wide. Knotty Wrap Collection: Ring: 1036 Necklace: 3036 Cuff: C36 Each of our pieces is cut, bent, formed and hammered by hand and with love in our studio in San Rafael, CA. We use sterling silver and 14k gold filled, both of which are nickel free. Any of our pieces can be made in solid 14k by request.