These 1960's-era hardware components were raw brass, but we plated them in rose gold and silver to highlight the cool asymmetry created by their pairing.  They probably weren't originally meant to be rings, but they work perfectly this way.  Because of the limited and unpredictable nature of our dead-stock finds, the only size available is 6.5.  Each ring measures just over 3/8" at the widest point, and 1/8" at the skinniest point.  (They come in a set of 2, with one of each color.)