4 color pen

Listings most often show 0.7 mm and 1.0 mm tips. The 0.7 mm tip is frequently called fine (or sometimes medium), while 1.0 mm is typically described as a medium point.

Most multicolor pens use retractable (click-style) mechanisms; some are refillable retractable designs. Erasable multicolor pens often have a top-mounted eraser on the click body.

Pack sizes generally range from 2 to 8 pens. Separately, some products are multi-ink pens that contain four different ink colors in a single barrel.

Many listings highlight ergonomic features such as contoured rubber grips and latex‑free comfort grips designed to reduce hand fatigue for long writing sessions.

Erasable thermo‑sensitive gel ink can be rubbed away with the pen's friction eraser and may become colorless above certain temperatures; cooling can restore the color. Because the ink is temperature‑sensitive and erasable, it's not recommended for legal or official documents.