These work great. With it being the summer months I still give my children school work just to keep their brains fresh.  So we use these daily. I write their lessons down daily. We have a double sided dry erase board. So they're able to use the other side to work out their lessons. The color is bright and very easy to read no matter where you're standing in my living area. I love the different colors it helps keep us organized. Although it says low odor, the odor was a little strong. The grip on them is good. It fits perfectly in everyone's hand making it easy to manage and hold. I did notice we had to wet our eraser just a little to get all the ink off. If we didnt the ink left residue. I will be purchasing some of these for my kids teachers this upcoming school year.