red and blue pens

Common sizes shown are 0.7 mm and 1.0 mm, with at least one novelty listing noting a larger 2.05 mm point.

Yes—some listings include retractable red/blue pens, and at least one dual-ended option provides red on one end and blue on the other for two colors in one instrument.

Grips are often described as comfortable soft or contoured rubber grips; some listings mention latex-free or triangular latex-free grips for improved hold.

Some gel and liquid-gel listings call out fast-drying, non-smearing, or no-bleed technologies intended to reduce smears and keep writing clean.

Listings suggest uses like grading, color-coding, correcting, and general office or school note-taking; one dual-ended option is described as a teacher favorite for writing and correcting.