I ordered the SET after trying out one color and liking it. So far, so good! I haven't used extensively yet, but hoping I don't run into problems others seem to have had... I love the dual ends, which are very useful in a coloring Bible that I recently bought (and love! ) ... I am impressed with their bright colors and NO (!) bleed-through!
I enjoy using this set of BIble Markers. The colors are nice. There are enough that I can color code my Bible study for easy retrieval. They do not cover the words, they make them stand out. They do not bleed through, but you have to let them dry. They are a thick gel.