Instruct: Classify a given review as either positive or negative.
Query: They Just Work

I bought these to write on photographs. They work very well. I also bought Pentel Arts Sunburst Metallic Gel Pen Gold Ink, 2 Pack (K908BP2X) at the same time to compare side-by-side. The Pentel pens were clearly inferior and I tossed them aside. These Uniball pens are better for photographs than "paint" pens which tend to blob up on the photo and paint pens dry out and are useless often after their first use.