Every tattoo service is defined in sessions. From the moment you sign your paperwork, until you leave the studio. So a small tattoo that takes a half an hour is considered a ½ hour session. These smaller single session tattoos are subject to a by the piece pricing.
Tattoos that exceed the single session time frame fall into a category of Multi Session work. Half Day sessions are 3 hours and Whole Day sessions are 6 hours.
Extra time is scheduled for all Sessions to leave room for paperwork breaks and the unexpected.