The 28.2 cm (11.1 Inch) [245.2 x 138.1 mm] is the screen size of a specific device for which our website sells a range of screen protectors. It is important to know the exact screen size of your device in order to choose the right screen protector that fits perfectly and provides maximum protection against scratches, cracks, and other damages. Our website offers a variety of screen protectors that are specifically designed for this screen size, ensuring that our customers can find the perfect fit for their device and keep their screens safe and protected.