NOVIVON 5 Pack Reading Glasses for Men, Metal Blue Light Blocking Readers with Spring Hinges, Anti Eye Strain Eyeglasses (Gunmetal*2, Gold, Silver, Brown, 1.5) Gunmetal*2, Gold, Silver, Brown 1.5 x auspowers_batchfive Wavelength: 940nm

Wavelength: 940nm

makes it very quick and easy to test the quality of DEF

Lightweight Cover

04mm at the distance of 5cm

NOVIVON 5 Pack Reading Glasses for Men, Metal Blue Light Blocking Readers with Spring Hinges, Anti Eye Strain Eyeglasses (Gunmetal*2, Gold, Silver, Brown, 1.5) Gunmetal*2, Gold, Silver, Brown 1.5 x auspowers_batchfive Wavelength: 940nmNOVIVON 5 Pack Reading Glasses for Men, Metal Blue Light Blocking Readers with Spring Hinges, Anti Eye Strain Eyeglasses (Gunmetal*2, Gold, Silver, Brown, 1. 5) Product Features [Blue Light Reading Glasses for Men] Filter 95% harmful blue ray and UV 400 to relieve your visual fatigue and discomfort when reading, using a computer or cell phone, and better protect your eyes [High Clear Acrylic Lens] Environmentally friendly material acrylic lens