This is a ground breaking ball pen with erasable ink. With such special feature, the pen is very suitable for use in writing Schedule notebooks, preparing for the class, or making revisions after school. You can write down without needs to have an extra ink eraser. The pen's ink is available in three standard colors; black, red, and blue. Other colors are also available. The pen's holder is designed to match with suit. At the same time the pen's design also make it suitable for use in formal occasions.