Wallmates Self-Adhesive Dry Erase Monthly Planning Surfaces, 18 X 12, White/gray/orange Sheets, Undated Manage your schedule and change plans more easily with a dry-erase planner. Turns almost any smooth surface into a custom dry-erase planning center. Self-adhesive backing allows quick and easy mounting to any hard, smooth surface—just peel, stick and you’re done. Dry-erase marker included.