The 33.8 cm (13.3 inch) [294 x 165.5 mm] is the screen size of a specific device, such as a laptop or tablet. Our website sells a range of screen protectors that are specifically designed to fit this screen size, providing protection against scratches, smudges, and other types of damage. By offering a variety of screen protectors, including tempered glass and film options, we aim to provide our customers with the best possible protection for their device's screen, while also ensuring a perfect fit for the 33.8 cm (13.3 inch) [294 x 165.5 mm] screen size.