Wallies Peel and Stick Black Chalkboard Dots, Set of 24 Includes set of 24 chalkboard dot stickers. Each chalkboard dot decal measures 2-3/4" diameter. Chalkboard wall decals are removable and repositionable. Write on the chalkboard contact paper with chalk and wipe clean with a soft cloth. Just like chalkboard contact paper except that Wallies chalkboard wall decals are easy to remove and leave no sticky residue.