Red Safe Glasses goggle For 190nm-532nm Blue Violet Green Laser Pointer

Condition: Brand New Color: Red Protection Wavelength: from 190nm to 540nm Protection Features: All-round absorption Visible Light Transmittance: >55% Optical Density: > 5.0, (OD +5, OD +6) Attenuation: (10-6 < N% < 10-4) The length of temple is...