What is Blu-ray?: Blu-ray in the presence of a large number of computer monitors, fluorescent lamps, mobile phones, digital products, display, LEDs and other light, the wavelength of blue light causes the amount of toxins in the macular area of the eye increases, a serious threat to the health of our eyes Product Name: anti glare screen protector/ computer screen filter Product material: PET Thickness: about 0.35mm Product Style: Matte version Product features: anti-reflection/anti-radiation/anti-myopia/filter out blue light which relieves computer eye fatigue and helps you sleep better, etc Health: Prevent eye fatigue, CVS, chronic eye damage, eye fatigue, soreness and more serious eye diseases The package includes: 1x TV screen protector