Ono's Trading Company Polarized Bi-Focal Reading Sunglasses BRETON plastic frame plastic lens polarized Lens width: 61 millimeters Ono's CR39 lenses are lightweight, optically clear and more scratch resistant than standard lenses. Ono's frame styles with polarized lenses offer additional relief from horizontal glare Ono's lenses provide 100% protection from harmful UVA/UVB rays. Ono's integrated reader lens is positioned low in the lens for active outdoor use. Ono's Hard Case and Cotton Eyeglass Lanyard Included