The 61 cm (24 inch) [532 x 299 mm] measurement is used to determine the size of the screen protector needed for a specific device. Our website sells a range of screen protectors for various devices, including laptops, monitors, and televisions. By providing the dimensions of the screen in centimeters and millimeters, customers can easily find the right size screen protector for their device. This ensures a perfect fit and maximum protection against scratches, cracks, and other damage.