Product Description
The UNI-BALL SIGNO UM-120 is a premium-grade gel ink rollerball pen engineered to deliver a flawlessly smooth, scratch-free writing experience. Utilizing Uni-ball’s signature archival-quality pigment ink, this pen produces bold, highly saturated lines that are both completely waterproof and fade-resistant. Equipped with a precision-engineered 0.7mm stainless steel fine ball tip, it provides steady, skip-free ink delivery. Its fast-drying ink technology locks onto paper instantly, making it an indispensable asset for critical documentation across academic, corporate, and creative fields.
Key Features
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- Super Smooth Gel Formula: Low-friction ink glides effortlessly across paper, reducing hand strain during long writing sessions.
- Super Ink™ Technology: Advanced pigment-based ink is waterproof, tamper-proof, and fade-resistant, securing documents for long-term archiving.
- 0.7mm Fine Precision Ball: Sturdy stainless steel tip delivers consistent, clean lines without pooling, blobbing, or scratching.
- Rapid-Dry Chemistry: High-speed drying ink eliminates smudging, smearing, and messy transfer under palms or rulers.
- Transparent Barrel Design: Clear, high-visibility casing lets users monitor remaining ink levels at a single glance.
- Secure Click-Cap: Airtight cap prevents ink vaporization and clips tightly onto shirt pockets, notebooks, or folders.
Best Used For
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- Official Document Signing: Executing legal contracts, corporate agreements, and financial certificates where permanent ink is required.
- Left-Handed Writing: Providing a clean, smudge-free script for left-handed individuals thanks to the rapid-drying gel ink formulation.
- Academic Exam Papers: Writing long-form essays, board exams, and tuition tests cleanly without page-to-page ink bleeding.
- Journaling & Hand Lettering: Creating bold headings, organizing bullet journals, and filling out daily diaries with rich, dark lines.
- Creative Sketching & Outlining: Drawing fine-line illustrations, drafting artistic doodles, and setting foundational borders for multimedia artwork.






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