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 are designed to fit this specific size and provide protection against scratches, smudges, and other types of damage. By offering a variety of materials and features, such as anti-glare and privacy filters, we aim to provide our customers with a comprehensive selection of screen protectors to choose from for their 17 inch devices.