Tattoo guns and kits can come in a wide array of sizes. Quite a few are capable of using a single color of ink whilst others are able to apply a wide variety of colors. As with any other hardware, proper care and maintenance will extend the life of tattoo guns. A good set of well maintained tattoo kit and gun will also be a lesser source of infection. The mechanism for making a tattoo kit and gun is simple, many people are making their own tattoo guns.