Chums 3mm Universal Fit rope eyewear retainer is made with patented molded tips that fit nearly any size of eyewear frame without your frames slipping. The 3mm nylon perlon rope construction provides unique strength durability and style while the adjustable bead allows you to easily find the perfect spot for your sunglasses. Chums Universal Fit rope retainer measures 12.5” in length and are made in the USA.