The best product I have come across. They are adhesive clay and you can stick them on walls wood steel and other such surfaces. I used them to stick some light painting on a tile wall and also painted walls It's been a few months and they are still sticking. So it works and you don't need to punch in holes in the wall everytime. I also use it on the fridge for sticking notes. A number of uses. Great product if you have kids. You can stick up their painting and pencils and erasers. And there is a lot of adhesive clay that comes in a box so it's so affordable Go for it. Do give it a try. Hope this gives you ample info about the product. Thanks and have a great day.