Write your notes on the wall! This memo decal incorporates a black chalkboard vinyl that you can write on with chalk or chalk ink pens. It is applied directly to the wall. (Chalk Ink pen not included.)size:Overall Size (approx):20"w x 23"hwhats included: Black Chalkboard Memo DecalImportant Cleaning Tips for Simple Shapes® Chalkboard and Chalk Marker products: When using Simple Shapes® Chalk Markers on our Chalkboard products or other hard and non-porous surfaces, we recommend the following cleaning tips. For chalk marker writing that is just a few days old, use a paper towel with water to wipe clean. For older chalk marker writing that does not easily wipe off with a wet paper towel, we recommend either using a spray cleaner such as Kaboom or Oxy Clean. A Mr. Clean magic eraser also works well. Other cleaning products have not been tested and are not recommended.