The 39.1 cm (15.4 inch) [332 x 208 mm] is the screen size of a specific device for which our website sells a range of screen protectors. This measurement is important for customers to know as it ensures that they purchase the correct size screen protector for their device. The dimensions of 332 x 208 mm provide further clarity on the exact size of the device's screen, allowing customers to make an informed decision when selecting a screen protector. By providing this information on our website, we aim to make the purchasing process as easy and seamless as possible for our customers.