pulpen
Pulpen is the Indonesian term for a writing instrument that dispenses ink through a small rolling ball at its tip, commonly called a ballpoint pen. It is designed for everyday writing with smooth ink flow and quick-drying properties, making it widely used in schools, offices, and daily life.
Mechanism and design: An ink reservoir feeds a metal ball at the tip; as it rolls, ink
History: The modern ballpoint pen was developed in the 1930s by László Bíró and colleagues, with mass
Variants and use: Gel pens and rollerball pens are related variants offering different writing experiences; traditional