again, this is Pitt pens, sizes F and B in several different colors. I favor the earth tones, obviously, one of the reason I like these pens so much. They come in lots of good earthtones. i also like micon pigma pens, but they do not come in as many colors, the nibs are more delicate, they take slightly longer to dry, and therefore can smear on some papers, and they are getting harder to use as my eyesight has gone downhill a little as i get older. i do still use them, but I use the Pitt pens more. Click thumbail to see larger.