The 43.2 cm (17 inch) [341 x 273 mm] measurement refers to the size of the screen that our website sells screen protectors for. This size is commonly found in laptops, desktop monitors, and all-in-one computers. By providing screen protectors specifically designed for this size, our customers can ensure that their devices are protected from scratches, smudges, and other types of damage. Our range of screen protectors includes options for different types of screens, such as matte or glossy finishes, and different levels of protection, such as anti-glare or anti-fingerprint.