20x20 Vision Unisex Avalon Reading Glasses TR90 frame Acrylic lens Non-Polarized Lens width: 51 millimeters Unisex reading glasses. Buy 2 pairs and get 1 pair FREE. Comes with a travel pouch. High Quality, Fashionable, Cool and Stylish. 100% satisfaction or your money back. Denotes your style and good taste.