Welcome to our store! 1、BLUE LIGHT FILTERING: This computer screen protector filters out harmful blue light with wavelengths between 380-420nm. Advanced blue light blocking technology protects your eyes, sleep, and skin from the negative effects of overexposure to blue light. 2、WIDELY APPLICABLE: Made of highly transparent PET, this screen protector effectively prevents screen dust and scratches. Perfect for students, office workers, gamers, and programmers in their offices and homes. Compatible with 23.8 inch (528x297 mm) desktop computer monitors. 3、EYE PROTECTION: Enjoy your digital time without worrying about eye strain, blurred vision, and headaches. Get a better night's sleep with blue light blocking for your eyes and protection for your health. 4、EASY TO INSTALL: The computer blue light screen protector is very easy to install. After cleaning your monitor, simply remove the film on both sides of the blue light blocker and attach it. No air bubbles! 5、UV FILTERING: The blue light blocking screen protector panel filters 99% of harmful UV rays to help reduce eye strain. Used for a wide range of HEV protection. Item Type: Computer Screen Blue Light Blocking Screen Protector Material: PET Ratio: 16:9 Product Size: 23.8 inches (528 x 297 mm / 20.8 x 11.7 inches) Package Includes: 1 x Protective Film 1 x Dust-Free Cloth 2 x Adhesive Stickers 12 x Double-Sided Adhesive Satisfaction Guaranteed: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.