I bought these as a friend gave my daughter the heart shaped chalk board. I thought these pens would be great, however they do not come off the blackboard surface. She also got artistic on her mirror and thankfully these words and pictures have cleaned off. The blackboard, however, it's not budging. I've tried cold water, hot water, soapy water and scourers - not coming off. Be very careful what surface you use these on, test on a small area first (I wish I had)!
A note from the team
Thank you for placing your review and for taking the time to discuss the problem with the chalk pens, with us today. We've passed on your comments to our buying team to ask them to consider improvements.We would agree to try in a small area first.