The Jackson Safety 30-06 Readers Ol3006C Series Utilizes A Stylish Black, Ergonomic Nylon Frame Combined With High Performance Clear Polycarbonate Lenses. A Soft, Self-Adjusting Nosepad Is Utilized To Ensure The User'S Comfort And The Precise Placement Of The 1.0 Through 3.0 Diopter Lens Inserts Help Prevent Accidents, Headaches And Eyestrain. 6/Pr Per Case.,