The 43.2 cm (17 inch) [341 x 273 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. With our high-quality screen protectors, customers can enjoy a clear and unobstructed view of their screen while keeping it safe and protected.