The N-HOY-52 Laser Safety Glasses are for Infrared laser wavelengths. It has a Rimmed frame with grey color polymer lenses. High 41 % VLT (visible light transmission). The Rimmed frame has unmatched protection, comfort, and style, offering sleek styling that fits comfortably over prescription frames or can be worn as a stand-alone spectacle. This model is CE certified. Meets ANSI Z136.1 and EN207.