Protect your eyes and stay focused on the task at hand with the help of 3M safety eyewear. an excellent choice for you and all of your crew these safety glasses help block small flying objects or particles while providing essential protection from harmful uv rays. classic dual lens design provides 99.9% uv protection with a built in bifocal power of +2.5. black frame with clear lens. adjustable temple lengths and lightweight construction. meets ansi z87.1 and csa z94.3 standards.