Jackie O Sunglasses with Bifocals for Women with Oversized Oval Framed Nearly Invisible Line Sun Readers composite frame Composite lens non-polarized Lens width: 61 millimeters Lens height: 51 millimeters Bridge: 20 millimeters Arm: 130 millimeters HIGH QUALITY FRAME - Durable and stylish oversized square hand polished plastic frames are lightweight and very comfortable. This ladys bifocal eyewear features a glamourous frame selection of zebra black, zebra red, leopard brown and floral white design. They are all so nice! PREMIUM LENS - 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. WIDE SELECTION OF MAGNIFICATION POWER - This style offers range for strength from +1.50, +2.00, +2.50, and +3.00 FITTING SIZING INFORMATION - A perfectly well balanced frame is lightweight, comfortable and easy to wear. Good for medium to large head sizes. WHAT ARE 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.