Wallies Peel and Stick Chalkboard Heart Wall Decal, Set of 3 Wallies peel and stick chalkboard decals are a great alternative to chalkboard paint. Hearts measure from 8-1/2" x 8" to 17-1/2" x 17". 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.