Blue ink is the go-to for everyday writing, signing off forms, and marking up drafts — but a cheap pen makes it feel like a chore. These UNI-BALL Signo Impact blue pens don't. Tungsten carbide ball tip keeps your line width steady from word one to word two hundred. Smooth flowing ink, acid-free formula, no ghosting. Twelve pens in the box so nobody's borrowing from the shared cup at 4pm
| brand | UNI-BALL |
| product_line | Signo Impact |
| colour | Blue |
| pack_size | 12 |
| tip_type | Tungsten carbide ball |
| ink_type | Acid-free |
| category | Office Supplies |
| subcategory | Writing & Correction |
