proSPORT Aviator Bifocal Sunglasses for Men and Women Nearly Invisible Reading Magnification Line metal frame Composite lens non-polarized Lens width: 61 millimeters Lens height: 40 millimeters Bridge: 20 millimeters Arm: 115 millimeters QUALITY FRAME - Casual square aviator metal framed bifocal readers are lightweight and very comfortable. Hinged temples help retaining the original shape.Choose from gunmetal black, bronze, gold and silver frame option. Fits medium head sizes. Unisex style. proSPORT bi-focal eyeglasses feature aspheric lenses with scratch resistant. Optically corrected lenses provide accurate no distortion reading powers. The bifocal is perfectly placed for clear vision. The wholes lenses are protected from harmful UV A and UV B rays. Magnifying portion on the bottom lens is nearly invisible, so people will not notice that you are wearing bifocal readers. GREAT VALUE - proSPROT offer a convenient value set of 2 pairs at affordable discount price, so you have a pair always handy. Keep a pair in your car and other at outside patio table. WIDE SELECTION OF MAGNIFICATION POWER - This bifocals are for everyone!! A large range for strength is in stock from +1.00, +1.25, 1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.00, +3.25, +3.50 and +4.00 WHAT IS BIFOCAL SUNGLASSES? Bifocal tinted glasses are sunglasses with single powered reading inserted ONLY on the lower portion of the lenses. Functional bifocal sun readers are perfect for outdoor reading, driving, outdoor sports and distance viewing. You do not need to switch bifocal glasses and sunglasses.