?Please Note: 1.Please carefully check the computer aspect ratio size before ordering so as not to buy the wrong product. 2.Recommendation: Ues a protector in the backlight environment to avoid reflections. 3.Take off the screen adhesive films on both sides before installing the blue light filter for the computer monitor. ?Welcome to contact us if any problem troubles you, Answer and solution you got in first time.? Package Included: 1 x Anti Blue Light Screen Protector