The 6.1 cm (2.4 inch) [36.98 x 49.29 mm] measurement is the screen size of a specific device for which our website sells a range of screen protectors. This measurement is important for customers to know so that they can select the correct size of screen protector for their device. By providing this information, we ensure that our customers receive the best possible protection for their device's screen, which can help to prevent scratches, cracks, and other types of damage.