Package Included : Glasses Strap x 2PC Description: It can firmly entangle the mirror legs, and not easy to fall off (you also can adjust the tightness). Simple and practical, the rubber grips with steel coils can adjustable, the strap is made by Nylon. Suitable for myopia, reading glasses, sunglasses; Can be used for outdoor sports, play ball, or out of travel. Material: Nylon Color: Black , Blue , Gray , Red , Green , Yellow Size：One Size , approx. 63cm / 24.80" Pls note: 1 Inch=2.54 CM ,Please check the size chart carefully before your bidding,1-3cm difference may exist. Due to the light or monitor different ,the picture may not reflect the actual color of item. We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model.