he material between the two sides of the document, also known as the blackboard or core, is also important to the results. The higher the hardness, the weaker the flexibility, and the greater the effect when the energy of the hand is directly transmitted to the area between the file and the nail enhancement. Therefore, it is important to combine a hard core with a lower gravel thickness, because you want to remove more material and work effectively, not too hard, If you work many hours a day, you may hurt your arm, arm or shoulder. On the other hand, if you want to make the nail pedal highly sensitive and use a high grid, you'd better use the core, It absorbs and corresponds to the energy you send to the file. We call it nail polish, so we also call it buffer very thick, soft and sponge file. The buffer is more flexible and soft, which is very suitable for polished products or natural nails, depending on the texture. For example, a 180 grain file works differently on a manicure, depending on whether it is a file or a buffer because of the energy transferred from the work different.
