| Free Ink System Fountain Pen FP-50182 | |
| Tips on Two Sides | One tip for writing, another tip for erasing |
| Cartridge | Replacable cartridge |
| Ink Filling Method | The filling process is easy and simple, no contanmination , no waste |
| The ink cartridge is small and portable to ensure continuous writing | |
| Ink Flow Control | S tart writing after pulling off the cap, no waiting and writing is smooth |
| Free ink system control the ink flow effectively. | |