Pentel EnerGel Rollerball Pen, .7mm, Black

We like how well the ink flows from these pens. But there are also some fine points most people may not notice - they have a plastic "nib" on the tip that you must remove before using the pens, so the ink won't dry out if you misplace the box for a year or two... Also, the ink well is much thicker than most so you get more writing than the average pen, yet transparent enough you can check on "how full is my tank". So if it seems to be skipping, you can check if you are running out of ink, or have a bad surface (hand oil usually) on the paper preventing the ink from adhering.

I was using sharping thin markers for my calendar to keep it organized before. I'm trying these pens out because it says it doesn't dry out and I am more than blown away by how amazing they write and the colors are fantastic. No issues with them so far and no bleed thru on my calendar and planner like the other markers. This is awesome.