[2 Pack] 21.5 inch Anti Glare (Matte) Screen Protector Compatible for 21.5&rdquo; All Brands of Widescreen Desktop with 16:9 Aspect Ratio Display Monitor [Not for a 16:10 Monitor] [Measure Your Screen as Image 2 to Avoid Buying Wrong Size] Fits for 21.5 inch with Aspect Ratio 16:9 monitor -DIAGONALLY MEASURED 21.5 (Measured Viewable Display Area Diagonally, Corner to Corner Without the Frame), filter size(W x H): 18.7 inches (47.6cm) x 10.4 inches (26.8cm) [!!! Cannot Fit Another 16:10 Aspect Ratio 21.5-inch Monitor. Also, Some Monitor sizes are not real, will be smaller than its indicated] Matte surface effectively reduce the glare & visual fatigue, no residue remove [!!! if you are not an experienced, Refer to image 3 to use] 5H highly durable, anti scratch , oleophobic coating to reduce screen smudges Safely removes fingerprints, smudges, sweat, saliva from your keyboard and screen using only a minimal amount of water with the gift large cleaning Cloth Including: screen protector x2, Gift Cleaning Cloth x1, our friendly customer service 1. Determine your screen type is a raised bezel or a flat front glass 2. According to the screen type, measure your screen size 3. Compare with screen filter size, filter size must be smaller than the screen Diagonal Length:21.5 inches (54.6cm) Height:10 9/16 inches (26.8cm) Width:18 3/4 inches (47.6cm) Monitor Aspect Ratio:16:9 Pleaseallowthe protector size with a tinydifference Newest anti glare matte technology, efficiently reduce screen glare 100% compare with a touchscreen Anti scratch, oleophobic coating reduce screen smudges Reduce UV rays and Light reflection