This is the best dry erase I have ever used. My son is homeschooled and He is 13, he has been homeschooled since kindergarten. I have used many dry erase pens and this one by far takes the cake. Those pens have absolutely no odor, which is very unusual for that type of pen.it last long, very long. I love the way it prints. It writes like a huge pen not a bulky marker .it is also easy to erase. This is perfect for back to school supplies, as the teacher would greatly appreciate the long life of these pens and the lack of unwanted fumes. I would definitely recommend..