Our kids are exposed to digital products earlier and more frequently expecially during the online class time. Our blue light glasses help to block harmful blue light and providing UV400 protection which can effectively ease dry and tired eyes, reduce blurred vision and headache to improve kids sleep level. <br><br><b>Main Features: </b> <br>Material: Plastic <br>Item Shape: Square <br>Item Style: Leisure <br>Sturdy and Durable <br>Super Comfortable and Lightweight <br>They fit well on every kind of the face shape and go great with any outfit wear <br>Kids will get a lot of great compliments about the new look when wear it <br><br><b>Measurements:</b> <br>Lens Width: 47mm <br>Lens Height: 36mm <br>Temple Length: 135mm <br><br><b>Eyeglasses Maintenance:</b> <br>1.No paper towel or cloth, which can grind dust and fibers into Lenses and leave scratches <br>2.Avoid using household detergents or soaps, they are powerful enough to slowly disintegrate Lenses coatings <br>3.Be careful of the seawater corrosion and avoid consistent hyperthermal exposure under the car windshield