2 of 2 people found the following review helpful
Great for sketching,
This review is from: Faber Castell Pitt Artist Pen Wallet of 6 with Assorted Tips - Black (Office Product)
Bought a pack of these to keep in my bag with my sketchpad and I'm really pleased with them so far. Very easy to use and with the inks being permanent I can wash over any sketches with watercolour or acrylic later on if I want to.