This is a 27 in. anti-blue light and full acrylic frame privacy screen filter created desktop monitors with 16:9 aspect ratio. The filter is matte with scratch resistant coating 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 a 0.75 in. acrylic tab which allows the filter to hang over the screen. The filter measures 615*370mm 2.5mm thick and has a privacy angle of 30 left and right. This easy-to-use full acrylic frame privacy screen requires no additional installation and is perfect for all users who work and play off their desktop. 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.