Pecan Eyeglass / Sunglass Necklace. Some say puh-KAAN and others say PEE-can, but either way this eyeglass chain has lots of very pretty pecan wood beads. Light weight and measuring 28 inches long, this necklace also has beautiful multi-faceted translucent green crystals that showcase the color and grain of the wooden beads. Gold tone accents and adjustable stretch ends to fit most glasses help enhance a very pretty by product of nature.