: 1. RELIEVE EYE STRAIN: harmful light emitted by electronic LED screens, wearing this light blocking glasses can blocks the harmful light and relieve the eye fatigue, headache. 2. UNIQUE PHOTOCHROMIC DESIGN : es are clear when indoors or at night and automatically darken to a sunglasses tint when exposed to UV sunlight. es will begin to clear as soon as they are away from UV sunlight. 3. FASHIONABLE: for indoor or outdoor. -shaped frames, look good on any face. In different weather, the lens have change. 4. COMFORTABLE WEAR: Alloy material frame, strong and durable material, comfortable nosepads and temples, easy to wear to prevent slipping. durability and avoid breaking. No fade. 5. UNISEX: For adult men and women, no more eye fatigue, blurred vision and headache during your computer/ tablet/ mobile phone screen time. Notice: 1. Actual color may be slightly different from the image due to different mon and light effect. Please allow 1-3cm deviation due to manual measurement. : Frame material: alloy Total width: 138mm Total length: 140mm includes: 1 x glasses