The radiation glasses 33 feature high quality, distortion-free SF-6 Schott glass radiation-reducing lenses with 0.75mm Pb lead equivalency protection. These lead glasses also provide 0.50mm Pb lead equivalency lateral protection. The 33 lead glasses have clear CE Certified Lens and weight 90g. These radiation glasses 33 are non-prescription. Made of high-quality plastic, it is a durable and lightweight fitover frame. The 33 radiation glasses feature adjustable temples and integrated side shields. These Phillips Safety radiation glasses are available in black and tortoise.