Description Product Details Warranty Information OnO C17219 Black: A elegant unisex style with spring hinges. Premium quality! Frame Material: Hand Made Acetate with spring hinges Fit: Medium Large 52 18 145 36 Comes with: Companion Case, Cleaning Cloth, 1oz. Eyeglass Cleaner Free Shipping (USA) Frame Size: Medium Large (52-54mm) Bridge Width: 18mm Color: Black Shape: Round Material: Acetate Style: Full-Rim Spring Hinge: Yes newOptions: true 30-Day No-Hassle Guarantee