Laser Safety Protective Glasses 190-540nm Protection Wavelength Multi-directional Protection

Features:1. Protection wavelength 190~540 nm.2. The flanks are adjustable for multi-directional protection.3. Anti-green light, blue light and purple light.4. Optical density: OD5+.5. Light transmittance 55%.6. Absorbent protection.Specifications: Material: PC Glasses size: 14*11.5*4.7 cm/5.51*4.53*1.85"   Notes:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3 cm measuring deviation due to manual measurement.  Packing list:   Laser protective glasses*1 EVA glasses case*1