Pilot FriXion Clicker Retractable Erasable Gel Pens - Fine Point 0.7mm, 6-Pack Green Ink - Smooth Writing for School, Office & Note Taking

Not literally the best pens ever - they write well (smoothly), seem to dry out every so often but come back to life & then die seemingly pretty fast. That being said, they are my favorite pens and I will continue to use them religiously for the ability to erase and have fun colors/refills. Have turned a lot of friends onto them and they now use them as well!