• This eye barrier is a seeping prevention filter that allows you to operate your computer with peace of mind while traveling on a bullet train or business trip • The screen appears straight from an angle outside 60° (30° left and right), so you don't have to worry about watching your computer screen • 5.8% reflectivity reduces surface reflections such as light and outside light, improving your screen viewing experience • 75% transmittance to keep your eyes friendly and easy to see • High hardness of 3H to prevent scratches on the filter surface