Ballpoint Pen – The Everyday Essential Introduction The ballpoint pen is the world’s most popular writing tool, known for its reliability, affordability, and smooth ink flow. Unlike fountain pens or gel pens, it uses oil-based ink and a rotating ball tip to prevent smudging and ensure long-lasting performance. Key Features of Ballpoint Pens ✔ Smooth Writing – Glides effortlessly on most paper types.✔ Smudge-Proof – Oil-based …