Serengeti Duccio Sunglasses - Polarized plastic frame glass lens Polarized Lens width: 58 millimeters Bridge: 15 millimeters Arm: 125 millimeters 3.94" high 7.87" wide Photochromic lenses constantly adjust to changing light conditions Spectral Control diminishes haze and distracting glare, enhances contrast and sharpens your vision Polarized - parallel light rays can enter, while distracting perpendicular rays are absorbed 100% UVA/UVB Protectant, Trivex Lenses Trivex Frame Front/Stainless Steel Temples and Adjustable Nose Pads