Pilot FriXion Clicker Erasable Gel Pens combine the convenience of a retractable with incredible ink. It features a thermosensitive gel ink formula that disappears with erasing friction. With it, you get unlimited do-overs, allowing you to write, erase and re-write as often as needed without damaging your documents. It has a tip that will not wear down or leave crumbs behind and you can write in the same spot you erased. The retractable writing gel pen delivers smooth-writing, and it has a pocket clip for easy carrying. It's not recommended for signatures, examination papers or official documents where writing needs to remain permanent. The assorted ink pens have a 0.7mm tip, and they come in a pack of seven.