The 31.8 cm (12.5 inch) [277 x 156 mm] is a screen size measurement used for laptops and tablets. Our website sells a range of screen protectors specifically designed to fit this size screen. These protectors are made from high-quality materials that provide excellent protection against scratches, smudges, and other types of damage that can occur to your device's screen. By using our screen protectors, you can ensure that your device's screen remains in pristine condition, allowing you to enjoy your device for longer without having to worry about costly repairs or replacements.