Ballpoint ink tolerates being left open for a while, so a lost cap is an inconvenience. Gel, rollerball and fineliner tips dry out and are finished, which is what makes the cap part of the product rather than packaging. Where caps go missing across a floor, specify retractables for those ink types instead. See ballpoint pens, retractable pens and pens.

Capped pens displayed with notebooks and pen boxes on a bright modern office desk for everyday writing and note taking.
Capped Pens for Office and School Writing

Capped pens for everyday writing, schoolwork and office use. Shop reliable pens in practical pack sizes.