The 43.2 cm (17 inch) [368 x 229 mm] measurement is 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. Our range of screen protectors is designed to fit this specific size, providing protection against scratches, smudges, and other types of damage that can occur during everyday use. By offering a variety of materials and features, such as anti-glare and privacy filters, our screen protectors help to enhance the user experience and extend the life of the device.