●【Material】The glasses chain is made of Metal, not easy to deform, durable and not broken, long service life. ●【Adjustable】Fully adjustable to ensure a tight fit on your head so that your glasses won't fall off, expandable to completely prevent your glasses from falling off. ●【Fashionable appearance】The glasses chain is fashionable and beautiful, you can match all kinds of glasses without losing your decoration. ●【Practical】Our eyeglass holder around the neck is comfortable and versatile eyeglass holder for all head shapes and neck sizes. ●【High Applicability】Perfect for daily use or outdoor sports, such as fishing, biking, skiing, hiking, rock climbing, etc. Suitable for most sunglasses, daily glasses and reading glasses.