Pilot Dr. Grip 4+1 4 Color 0.7 mm Ballpoint Multi Pen + 0.5 mm Pencil - Series I - White Body

The refills which came with this pen write very nicely, a fine line but not too fine, and no globs or smearing. The pen is well-made and is a very nice color, a pearly white and the grip looks like it matches really well. I don't rate it well because, for me, it's too difficult to write with: the silicon/rubber grip is too loose. I tend to grip my pens and pencils a little tightly, and it makes the grip on this pen slide all over the metal sleeve underneath of it.

To answer the question about changing the lead, it's simple,unscrew the pen tip the pencil apparatus is on a clear tube, you just pull that out, put lead in, and refasten it, nothing breaks, or comes apart when you do this. You just make sure it's secure before you put the tip back on. The ink is the same place, you just pull out ink tube, and put refill in spot you pulled the ink from. push till it's secure, feel free to pull it to make sure.

Great pen until you try to add more ink or pencil lead. There are no instructions anywhere that show you exactly how to change the ink or add lead. The instructions posted on the ink refill packages themselves are incorrect as well. I had to break my pen before I realized exactly how you change the ink.

To change the ink.
Unscrew the tip of the pen to access the individual inks. Press down on the ink you want to change so that the ink cartridge slides down. Grab the ink tip and pull until it slips off. You may need some small pliers to do this. Once you have the spent ink out you should still be left with the clicker located at the top of the pen. Now take your refill, pull the clicker off of it, and slide it up into the slot where you pulled the spent ink out of. Give it a good push until it feels tight and stays. Now screw the tip of the pen back on and you should be finished.

To change the pencil lead.
I still have no clue how to change lead. The only thing I have figured out is how to push one piece of lead up into the hole. According to what I read online you are supposed to pull off the gold looking piece to add more lead but, I'm too chicken to try it.

Great Pen. None of the colors are dull. They pen actually writes smoother than I would imagine. Having the advent of 5 uses in one pen, you might think you would have to give up something. But actually, this pen is awesome. It's very durable and writes great. Good purchase.

If you'd like a gel refill, Pentel Slicci fits the bill. Hi Tec C fits, but is too short to be used.