1Nanometer Molecule: This liquid consists of small molecules, possessing a delicate nature and an effortless propensity for coloring. It offers a high level of color saturation, ensuring a firm and consistent permeation, making it resistant to fading. 2Uniform Coloring: Ensures a quick and uniform coloring process, while maintaining high color retention and preventing any alterations in the original shade. It also delivers superior color rendering, making it suitable for use with both manual pens and machines. 3Extrusion Design: With its user friendly extruding port, allows for efficient and waste free application. Its sealed storage system effectively safeguards the quality of the microblading practice pigment, ensuring long lasting preservation and preventing any potential leakage or degradation. 4Safe To Use: Featuring mild ingredients that cause no irritation, completely free from heavy metals, ensuring a safe and reliable usage experience. Although it cannot be applied to real person, it is suitable for practice purposes. 5Practice Ink Set: 12 bottles of makeup microblading practice ink, with different color, can be used for practice of eyebrow tattoo, lip tattoo and eyeliner tattoo. Perfect for beauty salon.