Neiko RIDGE53842A Polycarbonate ANSI Z97.1 Safety Glasses, Frame, Clear Meets industry ANSI Z87.1 standards and provides 100% UV protection for maximum safety so you can work in confidence Glasses are constructed from thin, light weight polycarbonate material that is extra durable and resistant to any impact Wraparound design offers full facial protection while providing a crystal clear optimal field of vision while working Fully adjustable frame is easily adjusted up to four notches by pulling out each side arm to fit any face shape, holes at the end allow for neck string attachments (not included) These safety glasses are essential for a variety of working environments from industrial sites to school science labs