Ballpoint ink is a type of ink specifically designed for use in ballpoint pens. It is typically oil-based, which allows it to dry quickly and resist smudging. This ink is formulated to flow smoothly through the pen's tip, providing a consistent writing experience. The main components of ballpoint ink include pigments or dyes for color, along with oils and waxes that help control its viscosity. This unique formulation makes ballpoint ink suitable for everyday writing tasks, as it can be used on various types of paper without bleeding or feathering.