A tattoo is, in the simplest way, the introduction of pigments into the skin layer without the possibility of regeneration, these definitely remaining under the skin. The introduction of pigments is done using one or more tattoo needles welded with a bar. Through a constant up and down motion, the machine with coil technology obtaining this movement by rotation, the ink pigments are introduced into the skin. In the case of a professional tattoo, these pigments are inserted into the lower layers of the skin. Here we can also talk about a permanent tattoo, because it can no longer be erased.