These Water Based Art Pens and Markers are great for artists of all levels. They are non-toxic and odorless and tend to not bleed on most papers which makes them great for illustrating, card making, journaling and coloring. They can be used in combination with alcohol based markers or other art mediums such as watercolors and inks. The Ohuhu brand is distinguished by it's good quality at a very economical price. They are a great value.