I am a coloring book enthusiast and I am always looking for more items to diversity my collection.  These markers are a bit thicker, but the points are thin, which I love.  You are offered 36 colors, which is another positive point!  If you color on very thin paper, it might bleed through.  So far, the ink has been lasting very well and the pens are not drying out.  I use these more for outlining and smaller sections on my coloring book.  I would not use these to color LARGE amounts of pictures.  These are not made for that.  I am very pleased with this product.  As an Amazon Reviewer, I did receive these at a discounted price so I could review them.  Worth the regular price!