Wallies Peel and Stick Purple Chalkboard Wall Decal, Set of 2 Wallies Peel and Stick Wall decals are a great alternative to chalkboard paint. Each decal measures 9" x 12" 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.