For use in reading project instructions, seeing detail sanding/cutting work or woodworking activities. Molded-in 2.0 diopter bifocal lenses are out of line of sight when not looking down. Soft molded-in rubber temples help keep glasses comfortably secure. Anti-fog lenses help maintain clear vision. Meets American National Standards Institute"s ANSI Z87.1-2003 standard. Applications: Power tool work, Sawing/drilling metal or wood, Hammering, Overhead work.