Free Your Hand and Never Lose Your Glasses Again. When you are exercising and outdoor activities, will your glasses fall off or your glasses nowhere to be placed? You can choose adjustable eyeglass chain, we can solve all your troubles for you. These eyeglasses strings are suitable for all types of eyeglass arms. Specifications: The portable eyeglass lanyard is made with the quality and skin-friendly materials that will last for years. The material of our eyeglass holders around neck will not irritate your sensitive skin even if you wear your glasses all day. These glasses straps are simple and stylish, making it easy to match different colors of glasses and apparel. Our glasses cord prevents accidental knocking off your glasses which can shatter them. It can be suitable for all sorts of eyewear - sunshades, reading, prescription eyewear, etc.