| Width | 4.6 |
| Height | 0.8 |
| NetWeight | 0.018 |
| Brand | uni |
| Model | UMR-5 |
| Product Name | Uni Mitsubishi Dual Ballpoint Pen Refill |
| Design | Dual ball bullet head design |
| Ink Type | Gel ink, water-based pigment gel ink |
| Ink Features | Lightfast, waterproof |
| Ink Color Options | Black, Blue, Red, Blue Black |
| Pen Length | 129mm |
| Pen Tip | Tungsten carbide roller ball tip |
| Writing Experience |
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| Smooth and consistent ink flow |
| Origin | Made in Japan |
| Manufacturer | Mitsubishi Pencil Co., Ltd. |
| Features | Non-leaking dual ball tip, fade-resistant gel ink, water-resistant |
| Tip Size | 0.5mm |
| Ink Capacity | High ink volume for long-lasting use |
| Color Options | Black, Blue, Red, Blue Black |
| Lightfastness | Resistant to fading in sunlight |
| Water Resistance | Does not smudge or bleed when exposed to water |
| Packaging | Available in basic four colors: Black, Blue, Red, Blue Black |