Radians Cheaters(R) Bi-Focal safety glass combines protective safety glasses with reading glasses. Adjustable vision protection for all day comfort. 5-position ratchet temple provides a customized fit. Cushioned, non-slip rubber temple pads for superior comfort. Magnification diopter is molded into the polycarbonate lens. Lightweight nylon frame. High tech vented rubber nose piece. Exceeds the new ANSI Z87.1+ standards and blocks 99.9% UV rays.