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 screen size. These protectors are made from high-quality materials that provide excellent protection against scratches, smudges, and other types of damage. By using our screen protectors, customers can ensure that their device's screen remains in pristine condition, extending its lifespan and enhancing its overall performance. Our range of screen protectors is easy to install and provides a clear, bubble-free surface that does not affect the device's touch sensitivity or display quality.