The N-FG1-55 Laser Safety Glasses are Ideal for YAG (1064-1550 nm), Holmuim YAG (2080-2100 nm + 1064 2940 nm), and Nd + Ho + ER:YAG (1064 2940 nm) laser wavelengths. It has a Universal Rimmed frame with light gray color glass lenses. The eyewear is designed to withstand direct laser radiation for short durations while providing excellent field-of-vision lenses with multiple wavelength coverage. 75% VLT (visible light transmission). The Rimmed frame is a comfortable over-the-glass spectacle and has good side shielding. It also comes with a removable Rx insert. This model is CE certified. Meets ANSI Z136.1 and EN207.