Multicolor pens

Multicolour pen

— pens with multiple refills of different ink colours — usually up to 4 (more increases the thickness of the handle and makes it uncomfortable). All such models belong to retractable pens (see the relevant paragraph): the refills are hidden inside, and the desired colour can be pulled out using a special switch. Two-colour pens are most often black and red, while blue and green are added to four-colour pens. However, most often the refills can be changed separately, and you can easily choose the right set of colours for you.