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 for this size, customers can choose the one that best suits their needs, whether it be a clear film for minimal interference or a tempered glass protector for maximum protection.