I used this product to "try " to clean off a dry erase/wet erase board we have been using to teach my daughter how to write. They took off all of the ghosting from the old letters. Now we use the wipes every day to clean off her board. They also worked really well on the front of my refrigerator after my daughter drew on it with a dry erase marker.
We use white boards to keep our schedules and "to do" list updated and current. These dry erase wipes keep the boards nice and clean and don't leave any residue. Even marker left on a while comes right off.
I returned this product because it simply didn't work. I had used another brand previously that did work. I have tried the Staples brand twice now and found it inadequate on my white board.
I bought these because the spray cleaner smells and bothers some people with allergies. These wipes are practically odorless and so far have not bothered anyone's allergies when I have used them.