Festty Glasses Strap Sports 3 pcs, Eyeglasses Strap Holder for Kids Women Men, Adjustable Sunglasses lanyard string chain，Reading eye glasses holders around neck, Eyewear Retainer (Black)

【Adjustable Eyewear Retainer】: Pull the adjusting buckle to adjust the length of the glasses holder strap (adjustable expansion range: about 9-13.7in)(23-35cm). Before purchasing, we recommend measuring the distance from the ends of the temples around the back of the head when the wearer has glasses on, and then comparing it to the maximum and minimum adjustment ranges of this product.

【Non-slip】: The high elastic silicon at both ends of the eyeglass strap firmly wraps the temples to fix the glasses on the head or neck, which is not easy to fall off. No need to worry about glasses slipping off your nose when you sweat or look down.

【No tail & Adjustable】: Tailless design, no hanging ponytail burden. Quite comfortable and soft. Adjustable--don't worry about being too tight or too loose.

【Suitable for temples】: Sunglass strap suitable for men, women or children. Suitable for temples of 5-15mm (Diameter of eyeglasses strap leg end: about 4.5mm/0.18in), meeting the needs of most people.

【Widely Used】: Our lightweight, durable and soft slider design makes it easy to use for any activity. Whether you are engaged in indoor or outdoor activities, including cycling, running, skiing or other sports, it always provides you with a comfortable wearing experience!