Red ink for the corrections, the approvals, the 'no, do it again' moments. The Impact RT drops a clean red line on the first pass — no ghosting, no smearing across your notes. Water-based gel ink means it dries fast and stays put, even if you're marking 40 scripts back-to-back. The rubber grip keeps your hand comfortable through a full session, and the twin ball ink control system keeps flow steady right to the last page. Twelve in a box, so every marker pen in the staff room gets replaced with something that actually works. Add to cart when you're ready
| brand | UNI-BALL |
| colour | Red |
| ink_type | Water-based gel ink |
| grip | Ergonomic rubber grip |
| ink_control | Twin ball ink control system |
| pack_size | Box of 12 |
| type | Retractable rollerball pen |
| category | Office Supplies > Writing & Correction |