This 36" chain is vintage matte brass and is punctuated by two asymmetrically placed antique (1970s?) knot charms. There's no extra hardware anywhere on the necklace, so you slip it on and off over your head. Wear it with the knots side by side, or one hanging down below the other. The chain hangs long - closer to your waist than your bustline. We doubled it onto itself here for photo purposes, but it's too short to loop twice around your neck. It's meant to be worn as one simple chain. All patinas are the result of natural oxidation.