Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it

I bought these markers thinking it would make it easier to "paint" on my son's birthday cake.I don't know if the markers were dried out, or if they are just a horrible product. I attempted to write on chocolate and fondant, and it was a streaky, chunky mess. The tips of the markers balled up and then simply would not work. I ended up buying Wiltons frosting colors and just used a small brush to paint on detail.