I have a Navaris Double sided Chalkboard/Whiteboard that I use these on (just the chalkboard side). I've had no problems with being unable to erase them. I can easily remove any writing just with a dry paper towel. I've had no problems with ghosting.The longest I've left the marker on the board so far was a week, and it erased cleanly and easily.
These work perfectly for chalkboard designs. I am able to create thin and think lines that turn out beautiful! I just use it for the chalkboard in my home.
It’s so hard to find a chalk marker with a tip thin enough for use on small labels. The thicker tips that are widely used are often so thick that I struggle to fit full words on small labels. This market is more like a pen and is perfect for use on smaller things or for fine details.
It takes a while of shaking and pushing the tip for the stuff to come out but once it does it writes very well!
Don't press down more than a very very slight push on the tip to start the flow of chalk. I pressed all the way down and a ton of ink came out!!! Other than that, I like these. My use is to label freezer containers. I freeze cups of ingredients for soups, and left overs for future meals. Very easy to read the contents on the blue twist lock containers!. Easy to wash off too.