Feature 1 [Blue Light Blocking] Blocks over 99% of harmful blue light between 400nm and 500nm using advanced anti-UV materials and multi-layer coating technology. Feature 2 [PC Nose Clip] Designed with a polycarbonate nose clip for a comfortable fit and all-day wearability. Feature 3 [Frosted Edges] Lens edges are frosted through a precision polishing process to help prevent scratches. Feature 4 [Wide Range of Uses] Ideal for individuals who frequently use digital screens, including computers and smartphones, to help reduce exposure to blue light and eye strain. Feature 5 [Small and Portable] Lightweight and compact design makes these blue light blocking glasses easy to carry and convenient for daily use. Item Type: Blue Light Blocking Glasses Material: PC Lens Material: Polycarbonate Anti Blue Light Range: 400-500nm Package List 1 x Blue Light Blocking Glasses 1 x Storage Box 1 x Cleaning Cloth