The glass holder strap has comfortable polyester cord, long lasting and fashion. Adjustable toggle on cords ensures that straps will not easily fall off and are comfortable for all head sizes and shapes.
Straps are approximately 23" (60cm) long,the buckle can sliding up and down to adjusting.Then allowing sunglasses to be comfortably hung on your chest, or rest on top of your head.
The lightweight polyester thin-frame sunglass retainers with rubber grips are great for sports, outdoor activities and everyday use.
6 pack with 4 colors: Black, Blue, White, White.Various colors will easily match with your clothes.This set is really your best choice!