Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Depends what you want to use these for

I received this product at no cost through the Amazon Vine program. I chose it because sometimes I need different color markers, for which this set has the following features:. Good selection of colors. Retractable tip eliminates lost caps, dried out markers, and is easy to use. Shape of tip easily enables a thick or thin line depending how you hold itI use nothing but yellow for highlighting since that is the only color that will not show up on a photocopy, which is something important for me, though probably not for lots of other people.I gave this four stars because for markers the ink is not as dark as using regular Sharpie markers, though those don't come in this variety of colors (the regular markers are black, red, green and blue). And even if you don't restrict yourself to using yellow as a highlighter, the darker colors in this set make the text too difficult to read when highlighted.