Happy Store CN56 Vintage Inspired Classic Horn Rimmed Nerd UV400 Clear Lens Glasses Composite frame plastic lens non-polarized Lens width: 49 millimeters Classic design for men and women,allows us to keep up with the fashion trends. Durable material and high quality make this glassses for a long time use. Clear lens with UV400 protection,it can block UVA and UVB rays. 30 DAY MONEY BACK GUARANTEE. All CGID customers enjoy 30 Day Money Back Guarantee. Customers can return and get refunded in case the purchasing is not satisfactory for any reason. You have no risk to try and we will provide you the best service! Tips:This glasses is just for fashion,we don't suggest that you replace the lens for prescription glasses.