Feature 1 BLUE LIGHT BLOCKING RANGE: Through a variety of UV-resistant materials and multi-layer coating technology, blocks more than 99% of harmful blue light between 400NM-500NM 2 COMPREHENSIVE PROTECTION: The blue light is blocked through absorption and reflection, which not only prevents the damage of blue light on the front, but also reduces the damage caused by the reflection of blue light behind the lens. Protect your eyes from blue light in all aspects and take care of your eyes in all environments 3 COMFORTABLE AND SCRATCH-FREE: Excellent PC nose clip, comfortable to wear, the lens edges are polished with a frosted process to avoid the risk of scratches 4 WIDE RANGE OF USES: Can be used for mobile phones and computers to prevent radiation, blue light and fatigue 5 WITH CASE: Equipped with a storage bag for easy storage, portability and access, and also prevents damage and loss Item Type: Blue Light Blocking Glasses Material: PC Lens Material: PC polyester Blue Light Blocking: 400-500nm Uses: Mobile phone computer prevents radiation, blue light and fatigue Package List: 1 x Blue Light Blocking Glasses 1 x Storage Bag