Sunglass Stop - Vintage Round Unisex Rx Optical Wayfarer Reading Sun Readers Glasses Strength +1.00 Thru +3.50 Plastic frame Gradient lens non-polarized Lens width: 146 millimeters Lens height: 48 millimeters Bridge: 12 millimeters Only from Sunglass Stop will you receive Total Satisfaction Guarantee 100% Protection Against Harmful UVA/UVB Rays | U.S. Standard ANSI Z80.3-2001 | CE Certified Designer Inspired Frame Design | Polycarbonate Lens High Quality Comfortable Fit | Unisex Fashion Rx Sun Readers Glasses Available Strengths: +1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.00, +3.50