AOSafety¨ Lexa¨ Readers Safety Eyewear - Designed for workers who have difficulty reading small print or who are engaged in small detail work. Combines extra wide viewing range and contoured design. Lightweight, high wrap offers additional coverage. Lens are easy to switch - simply snap off the temples and re-attach them to the desired lens. Fully customizable with three lens angles and four temple lengths. DX anti-fog hard coat protects lens from fog, scratching, and many chemicals. Bifocal readers with three magnification diopters: +1.5, +2.0, +2.5. Polycarbonate lens absorbs 99.9% UV.