Among everyday writing tools, many people wonder: which is better, a gel pen, a ballpoint pen, or a fountain pen? From a comprehensive writing experience perspective, Gel pens, with their smooth writing, stable ink flow, and wide range of applications, have become one of the most commonly used writi...

The working principle of a mechanical pencil is essentially a sophisticated drive and compensation system. Its core lies in the cooperation between the internal "three-jaw chuck" and the spring: when the top button is pressed, the spring is compressed, causing the chuck to open and move forward, pus...

Highlighters are almost an essential stationery item for everyone when studying, preparing for exams, or reading in depth. Faced with the dazzling array of colors in stationery stores, have you ever struggled with which highlighter color best improves memory efficiency? Which color is most harmful t...

When choosing everyday writing tools, many people are often confused by the dazzling array of pens, especially ballpoint pens and rollerball pens, which look very similar. Although they both use a rolling ball to dispense ink, the actual writing experience, ink composition, and suitable scenarios ar...