The radiation glasses 70-PC 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 70-PC lead glasses have clear CE Certified Lens and weight 82.7g. These radiation glasses 70-PC are prescription available. Made of high-quality plastic, it is a durable and lightweight wayfarer frame. The 70-PC radiation glasses feature removable side shields. These Safety prescription radiation glasses are available in black.