The 10.9 cm (4.3 inch) [96.5 x 55.3 mm] is the screen size of a specific device that our website sells a range of screen protectors for. It is important to know the exact screen size of your device in order to select the correct screen protector that will fit perfectly and provide optimal protection. Our website offers a variety of screen protectors for this specific screen size, including tempered glass, anti-glare, and privacy screen protectors. By choosing the right screen protector, you can protect your device from scratches, cracks, and other damages, ensuring that it stays in top condition for longer.