I have been using Dr. Grip pens for years, and when I found the Dr. Grip 4+1 I
had to have one. I bought a light green Dr. Grip 4+1, extra erasers, and extra
ink cartridges. I use it every single day, and I love it. It is no larger than a
Dr. Grip 1+1.
I plan to get another one or two simply to have in case Pilot every discontinues
this remarkable multi-pen.