The 38.4 cm (15.1 Inch) [306.2 x 229.8 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 correct screen protector that will fit perfectly and provide maximum protection against scratches, cracks, and other damages. Our website offers a variety of screen protectors that are specifically designed to fit this screen size, ensuring that your device remains safe and protected at all times.