Functionality: reflect and filter blue light, prevent color distortion, 7-layer anti-reflective coating to reflect and filter blue light,reduce eyestrain and sleep better. High light transmittance with no noticeable yellow tint to prevent color distortion, minimize glare from digital screens. | Size: 52-18-140 (Lens Width 52mm, Lens Height 38mm, Bridge Width 18mm, Temple Length 140mm) | Material:11g, ultra lightweight, frame TR90, no pressure on ears for long time wearing. Lens Resin. Square shaped frames with a pink pattern, crafted from lightweight yet durable TR90 | Magnification choose: we have +0.25 to +6.00 magnified lenses, can help you adjust your eyesight, relieve eye fatigue, dryness, and see objects more clearly (screens, books, laptops, etc.) | Warranty: you have no risk to try and we will provide you the best service! We stick to pay attention to product quality, if there's any quality problems please feel free to contact us.