High-quality processing of the surface and free edge of the natural nail ensures a strong coupling with the polymer material as a result of the subsequent modeling or nail coating with gel-varnish. That is why it is so important for the master of the nail service to use professional tools in work. The straight White / Brown double-sided file is a thin, solid base, each side of which is coated with high-quality abrasive spraying of different rigidity. The file is designed to work with natural nails: saw the surface before applying gel-varnish coating, length correction and treatment closer to the side rollers. To prepare the nail plate for applying gel-varnish, the abrasive side of 180 Grit is used, and before applying the nail polish - 240 Grit. The abrasive layer is resistant to erasure during operation, the saw has a long enough life.