This is a 23 in. anti-blue light privacy screen filter created for desktop monitors with 16:9 aspect ratio. The filter is matte on one side and glossy on the other with scratch resistant coating on both sides to prevent scratches and dust. The anti-blue light filter reduces blue-light exposure to decrease eye strain and damage over long periods. It also uses adhesive tabs which allows the filter to attach to the screen. The filter measures 509x286mm 0.58mm thick and has a privacy angle of 30 left and right. This anti-blue light privacy screen is perfect for all users who work and play off their laptops. These are environmentally friendly products that can be easily disinfected by any popular branded cleaning or alcohol wipes. Our filters are backed by a 1-year warranty.