1Concentrated color and extracted by professional technology, no heavy metal, mild and healthy. 2Nanometer small molecule liquid, fine and easy to color, firm and uniform penetration, not easy to fade, manual and machine applicable. 3High quality color material, fast and uniform coloring and good color retention, natural effect special designed for tattoo. 4Straw type design of the pigment bottle to ensure no waste use, convenient extrusion head for easy use. 5Sealed storage, leakage proof, easy to store. Multicolor optional, can be used tattoo practice or human operation.