Mass Vision "The Intellect" Full Outdoor Reading Sunglasses NOT Bifocals - Hard Case/Cleaning Cloth Included Acetate frame Polycarbonate - Shatter Proof lens non-polarized Lens width: 54 millimeters Lens height: 36 millimeters Bridge: 15 millimeters Arm: 139 millimeters UV400 impact resistant lenses, 100% UVA and UVB for your daily eye protection. EYE HEALTH - Reading Sunglasses help you preserve your eye health by reducing eye strain and fatigue. COST SAVINGS - Because you'll no longer need multiple pairs of glasses, full reader sunglasses save you money. EASE OF USE - Sun Readers are convenient. It's just that simple. No longer will you need to carry multiple pairs of glasses around with you. Reinforced spring hinges for maximum flexibility and comfort.