FROSTED EDGES: The edges of the lenses of our glasses are polished with a frosting process to reject the risk of scratches. CLIP ON: These blue light glasses are equipped with PC material nose clip, which allows you to wear comfortably. BLUE LIGHT BLOCKING: Over 99% of harmful blue light between 400NM and 500NM is blocked by a variety of different anti UV materials and multi layer coating technology. WIDE APPLICATION: These blue light glasses can be used for men or women who often need to use cell phones and computers to prevent radiation, blue light and eye strain. SMALL AND PORTABLE: The anti blue light glasses are compact, lightweight, easy to carry and use, and very effective.Manufacturer: Yunseity Model Number: Yunseity5htenc0vf3-12 Part Number: Yunseity5htenc0vf3-12 Size: Square Glasses LensesSpec:Item Type: Blue Light Blocking GlassesMaterial: PCLens Material: PC polyesterAnti Blue Light Range: 400-500nmpacking list:1 x Blue Light Blocking Glasses1 x Storage Box1 x Cleaning Cloth