Uni-ball Signo RT UMN-105 Gel Pen 12-Pack
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Estimated Delivery:Sep 06 - Sep 10
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Free Shipping & Returns: On all orders over $35
Uni-ball Signo RT UMN-105 Gel Pen 12-Pack
Uni-ball Signo RT UMN-105 — Precision Gel Pen, 0.5mm
Experience the gold standard of Japanese gel writing. The Uni-ball Signo RT UMN-105 delivers ultra-smooth, consistent ink flow with a micro 0.5mm ball tip — trusted by students, professionals, and pen enthusiasts worldwide.
✦ Key Features
- 0.5mm Micro Tip — Fine, precise lines ideal for detailed writing, note-taking, and forms
- Retractable Click Mechanism — One-handed convenience, cap-free design
- Water-based Pigment Gel Ink — Fade-resistant, waterproof, and smear-resistant once dry
- Rubber Grip Zone — Ergonomic comfort for extended writing sessions
- Refillable Design — Compatible with UMR-85 refill cartridges
- Made in Japan — Manufactured to Mitsubishi Pencil's exacting quality standards
✦ Available Colors
- Blue | Black | Red
✦ Specifications
- Model: UMN-105
- Tip Size: 0.5mm
- Ink Type: Water-based Pigment Gel
- Mechanism: Retractable (click)
- Grip: Rubber
- Refillable: Yes (UMR-85)
- Origin: Japan
❓ Frequently Asked Questions
Q: Is the Uni-ball Signo RT UMN-105 refillable?
A: Yes. It is compatible with the Uni-ball UMR-85 gel ink refill cartridge, making it an eco-friendly and cost-effective choice for regular writers.
Q: Is the ink waterproof?
A: The water-based pigment ink is highly water-resistant once dry, making it suitable for important documents, planners, and archival use.
Q: What is the difference between UMN-105 and UMN-152?
A: The UMN-105 features a 0.5mm tip for finer lines, while the UMN-152 uses a 0.5mm tip with a slightly different body design. The UMN-105 is the classic retractable model in the Signo RT line.
Q: Is this pen suitable for left-handed writers?
A: Yes. The quick-drying pigment gel ink minimizes smearing, making it a great option for left-handed users.
Q: How many pens come in a box?
A: Each box contains 12 pens of the same color. Single pens are also available.
Q: Is this an authentic Japanese product?
A: Yes. All pens are genuine Uni-ball (Mitsubishi Pencil Co.) products manufactured in Japan.
Free Shipping for orders over 35 USD.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.