The Pyramex Lanyard Loop Cord allows you to keep your hands free and hang your glasses around your neck when you aren't using them.  The lanyard attaches to the temples of your safety glasses for a secure fit.  The Lanyard Loop Cord provides an easy and safe way to keep your glasses accessible for use and keep them close to you during those short periods of time when they are not needed and keep them safety attached to your body in a variety of elements.