Features -Filter out Blue Light and relieve computer eye strain to help you sleep better -Anti-fingerprint and grease dirt, extra sensitive touch screen.Excellent character recognition. -Block 99% of UV and block 65% of harmful blue light between 380nm-490nm . -Reduce-Glare, help minimize annoying surface glare under bright lights. -High transmittance,The thickness of screen and the touch feeling have little change after installation. -Uniform thickness, smooth surface.The picture can be showed incisively and vividly. -Easy to install, also allows for easy removal. No bubbles, no fuzz. How to install Step 1.Use alcohol swab or microfiber cloth to clear the LCD screen before installation. Step 2.Peel the protector layer off the adhesive side. Step 3.Carefully align the glass to the screen and slowly apply it onto the screen. Step 4.Lightly press the center of the glass then adhesive part will spread over all parts smoothly. Step 5.Use the clean cloth or finger to remove any visible bubbles from the screen. Diagonal Length: 13.3 inch Width: 11.57inches (294cm) Height: 6.53 inches (166cm) Screen Aspect Ratio: 16:9 Please allow the protector size with a tiny difference100% FREE TRIAL and SATISFACTION GUARANTEE : 1-PACK design with 1 Screen Installing Kit.We are responsible for our customers and products,if you are not satisfied with our products ,you can return without any reasons.100% RISK FREE!. EASY TO INSTALL:Newest bubble adsorption design can remove all small bubbles by press with installation. The cleaning cloth, the wet wipe and the dust removal sticker prevent dust from staying on the screen, making it an easy and bubble free application, even if bubbles are produced, lift the filter and re-apply. APPLICATION:Our anti blue light screen protector is Perfect for insomniac, students, office staff, game lovers, fashion beauty, pregnant women, elderly, filter out Blue Light and relieve computer eye strain to help you sleep better. COMPATIBLE WITH:Perfectly fit for 17.3 Inch with Aspect Ratio 16:9 laptop,DIAGONALLY MEASURED 17.3¡±(Measured Viewable Display Area Diagonally, Corner to Corner Without the Frame), filter size(W x H): 15 inches (38.2cm) x 8.5 inches (21.5cm). ANTI-GLARE & ANTI BLUE LIGHT:This anti blue light screen protector coming with Blue light filter, Anti Glare, UV400 protection, Radiation Protection, Anti-static, effectively reduce the visual interference caused by strong light from the screen while in a high light conditions.