Nice markers that get the job done. It is hard to say anything more. They are dry erase markers. As long as they write and the last more than a day, they meet the requirements. I think my only complaint is that these markers seems to leave a slight residue on the board when I use an eraser (new or old). Nothing major and definitely not a deal killer, just an annoyance. The reside comes off when dry erase board cleaner. Overall, good markers that I will always trust and use.