These pens perform really well, they are really bold and vibrant. I love using colors for my notebooks, planners, doodles, journals, etc. The pens do not bleed through the other side of the paper. I love using these pens for my bullet journal and planners. the tips are very fine and I enjoy writing precisely with them. The ink dries pretty quickly, doesn't smear! I really recommend these pens, they will be a great addition!