I use a paint pen
But that just wipes off right? How can I keep my kids from wiping it off?
I have a question... I have used a permanent marker, pens of different types and the only thing that doesn't run or fade is pencil....what do you recommend that I write on these with and I wish it came with an acceptable writing implement!
Hi Tiffany. Any dry erase marker should work well with our Growth Charts.