Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best CD/DVD pen

I did a lot of research before buying these pens. There are many out there that say they are intended for CD/DVD writing. However, these are the only ones I found that are guaranteed to be solvent free and alcohol free so that they cannot affect the CD surface. The pens have two tips, which is also nice. However, the smaller tip is what I would call "medium" and the one I use. The larger tip is really too big to write much in the space available. The smaller tip leaves a dark and easy to read message, and you can get several lines of text on the CD surface if you write very carefully. My only complaint is that these pens are pretty pricey for what they do, especially when one factors in the shipping. I could not find them in any of my local stores, so an online order was the only option. I decided to bite the bullet to make sure I don' damage my critical CDs and DVDs. Highly recommended.