Hi there, yes you can! It depends which version you buy. We have a couple different options. That will decide what type of refill you'll have to purchase. they can be found in many art supply stores!
Answered at 10:09am on August 20th, 2014 by girspiggy (2405 karma)
For the 4mm grease lead you want this:
I found it tough to find (even though it's listed in the instructions) because they don't seem to call it grease lead. Anyhow, just ordered some via Amazon as shipping directly from Listo is expensive and it was the correct stuff. It's too bad they don't include a few sticks of the stuff with this. I'd have been willing to pay an extra $.50 for that.
Answered at 07:25am on September 11th, 2017 by areeve (7 karma)