Inks Auto Disappear Magic Pens for Kids，10 Pieces Disappearing Ink Refills Pen, Keep Your Walls and Furniture Clean

The ink does disappear completely! Very satisfied

The ink stays for about 24hr

I got this fory kid to practice writing his letters and words for a Pre-K kiddo. Loved that the ink disappears and you're not wasting the activity book.

The ink is fine, the pens just don't fit properly into the pen provided.

This pen is magic. It writes just like a normal pen but leave it long enough and it disappears. Our house has enjoyed using them in school workbooks that we want to do over and over again. We do the work like normal, let it sit for a while and it's clean and ready to do again.

I love this ink and to go with the handwriting workbooks, however, the pen body is not sturdy and won’t last as long as the ink refills. The body strips and the rubber dolphin to help with pen grip is also medium to low quality. I wish the pen was retractile so you didn’t need to remove the dolphin each time.

Works great!

Ink is nice and disapears slowly. You only get one pen to put the ink in and it's very cheap. The ink sticks have an odd design so tgey won't go in other pens easily