***** **********Best Quality Guranteed. *****Filter out Blue Light and relieve computer eye strain to help you sleep better*****Actual Screen Protector dimensions are 24 inches measured diagonally. 20.9 inches width x 11.8 inches high. Please compare your monitor to our measurement picture before purchasing*****blue light blockage (380nm-490nm)*****Easy to apply and remove. This package includes 3 screen protectors and an installation kit. *****Protects screen against scratches