Features: - Adjustable 15"-10". - Waterproof. - Lightweight. - Fits most adult eyewear frames. - One year warranty directly with manufacturer. - The Zol Eyewear Wire Adjustable Sunglass Strap is lightweight, waterproof and stain resistant accessory that fits most adult eyewear frames. Has a 15'' length and can be adjust to 10" . The Zol eyewear wire adjustable retainer is a great accessory for: water sports, hunting, shooting, driving, hiking, cycling, running, fishing, boating, and every day use. One year warranty directly with manufacturer.