Uni-ball Signo Retractable Gel Pen, 0.7 mm, Quick-Dry Pigment, Smooth Writing, Smudge-Resistant, Textured Grip, Ideal for Fast Notes - Blue

Tip size: 0.7 mm; Ink color: blue; Ink type: pigment-based (pigment ink); Line quality: consistent 0.7 mm blue lines; Tip technology: low-friction tip; Ink flow: Uni-Flow regulation for steady output; Grip: textured section for better control; Mechanism: retractable; Model variant: UMN-155N-01BE.

The Signo RT1 uses quick-drying pigment ink paired with a low-friction tip, which minimizes smear risk during fast writing. The combination helps you lay down lines quickly and cleanly without smudging at common writing speeds.

It's great for students taking fast notes, professionals filling out forms, and journal keepers who want readable blue lines with smooth, comfortable writing over longer sessions.

Extend the tip by clicking the pen and begin writing. When finished, click again to retract the tip. Keep the nib clean with a soft cloth if needed, and store the pen with the tip retracted to protect it and prevent leaks.

Yes. It is designed for everyday writing tasks and provides non-toxic, reliable performance suitable for school and office environments.

Compared options on Fepy include: 1) Uni-ball Signo RT1 0.7 mm Blue (UMN-155N-01BE) — https://fepy.com/product/uni-ball-signo-rt1-0-7mm-blue-umn-155n-01be; 2) Zebra Sarasa Clip Gel Pen 0.7 mm Blue — https://fepy.com/product/zebra-sarasa-clip-0-7mm-blue. The RT1 emphasizes pigment ink for smudge-resistance and a textured grip, while Zebras Sarasa offers a different grip and ink feel but similar line width.

The RT1 0.7 mm focuses on a 0.7 mm tip with pigment-based ink for quick-drying, smudge-resistant lines, plus a low-friction tip and textured grip. Other Signo models may use different tip sizes (like 0.5 mm) or dye-based inks, which can alter line sharpness and smudging behavior.

Best results come from smooth, medium-weight paper (like standard printer or notebook paper). The 0.7 mm line is ideal for quick notes, forms, and readable journaling. Avoid very glossy or highly textured surfaces where ink may feather or take longer to dry.

If you value smooth writing, quick-drying pigment ink, and a comfortable grip for frequent note-taking, the Signo RT1 offers features that reduce smudging and improve readability, which can translate to better longevity of notes and less repositioning while writing. This often makes it a solid value against cheaper gel pens that may smudge more or feel less comfortable over long sessions.

Maintain a comfortable writing angle (about 30–45 degrees), write with steady, moderate speed, and let the ink dry briefly after placing a line to prevent smudging. Keep the tip clean, avoid pressing too hard (which can widen lines), and store with the tip retracted to protect the nib.