The 34.3 cm (13.5 Zoll) [285 x 190 mm] refers to 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 285 x 190 mm dimensions 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, our website aims to make the purchasing process as easy and seamless as possible for our customers.