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The uni-ball UB-188-L Rollerball Pen combines the elegance of a fountain pen with the convenience of a rollerball. Featuring a 0.7mm medium nib and Uni Super Ink that is fade, water, and chemical resistant, it delivers smooth, customizable lines with a frictionless metal ball mechanism. Packaged in a box of 12 blue pens, it offers a sleek, comfortable grip and leak-proof design, perfect for professionals seeking reliable, stylish writing instruments.








| Manufacturer | Uni-Ball |
| Brand | uni-ball |
| Item Weight | 0.039 ounces |
| Product Dimensions | 0.63 x 0.55 x 5.51 inches |
| Item model number | 190512000 |
| Is Discontinued By Manufacturer | No |
| Color | Blue Gel |
| Closure | Click-Off Cap |
| Grip Type | Soft |
| Pencil Lead Degree (Hardness) | HB |
| Material Type | Plastic |
| Number of Items | 12 |
| Size | 1 Count (Pack of 12) |
| Point Type | Medium |
| Line Size | 0.7 Millimeters |
| Ink Color | Blue |
| Tip Type | roller-ball |
| Manufacturer Part Number | 190512000 |
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