Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Comfortable Grip, Solid Lines

This pen provides a comfortable grip for those who write a lot, and does not bother my finger when I rest the pen on it. After writing with pens which do not have such a grip, the knob I've developed over the course of many years of writing is very prominent. Not so with this pen.It also writes very well with bold, sharp, and smooth lines that don't smudge. This is important for someone whose left-handed: much less ink rubs off on my hand. Also, it's easy to refill this pen. I intend to use it for as many years as it lasts, and recommend it to students and anyone else filling out a lot of paperwork.