The Uni-ball Signo UM-151...
February 24, 2016
The Uni-ball Signo UM-151 is my absolute favorite pen. I prefer the 0.38 mm, but
I got the smaller size for my husband (since this is what he prefers). He's
normally a "black ink only" kind of guy, but I convinced him that it's
beneficial to have a few more colors for taking notes. He opted for the light
blue and the emerald, since they are both subtle. I believe I have convinced him
that it's useful to have a few more colors.