Write & Wipe 18" X 24" Wall Calendar Write & Wipe Mega "Pencil Me In Calendar". Never Forget Your Appoinytments Again! Simply Wipe Off To Erase! IT'S EDUCATIONAL, DECORATIVE & SAFE ON WALLS! - Incrediwalls 18"X24" Wall Mural, CRAYONS INCLUDED! A self adhesive calendar mural, stick to walls with no tacks or glue, can be removed and repositioned up to 2 years with no damage to walls and no residue. Write with any marker, then wipe off and write again! No Special Pens, Cleaners or Cloths Needed. Use of vertical surfaces strengthens shoulder and arm muscles, help develop motor skills. Great for office, kitchen, dorm room, and more.