【Features】High grade non-slip glasses chain, fine workmanship, comfortable and safe, electroplating texture, the end of the glasses are set to prevent the glasses from slipping during exercise, suitable for matching all kinds of glasses and clothes. You can wear it freely on your chest by removing your glasses. Your favorite glasses partner for sports, travel, participating in banquets, etc. How to Use: Place the rubber band on each end of the eyeglass chain on top of the temple, and secure the temples with the metal buckle of the rubber ring.