Carykon Colorful Elastic Adjustable Eyeglass Sunglasses Strap Rope Cord Chains Holder for Kids Children, Set of 12 Keeps your glasses secure round your neck: Suitable for: optical frames, reading glasses, sunglasses. Fit for most children's eyeglasses frame. With cute and cartoon shaped plastic pattern, highlight children' glasses. Lightweighted & Durable. Slider fit adjustment. Come with a Carykon key chain (random color).