The Pentel Color Pen set has been my absolute favorite colored fine point markers these past THIRTY+ years since I was gifted my first set when I was an adolescent.  I absolutely treasured my Pentel set through high school and my early college years though I was rather devastated when I found a family member had run off with the black pen from my set! They are SUPERB for school projects, homework assignments, art class, but most importantly, they are IDEAL for coloring gorgeous mandalas while easing the mind! I cannot attest to how the pens made today will last, but I faithfully used my original set for roughly 15 years before I eventually lost them in a move.