WallMates Self-Adhesive Dry Erase Wall Planning Set includes both an 18" x 12" undated monthly planning surface and an 18" x 12" writing memo surface, and includes a dry erase marker. The monthly planning surface provides large daily blocks with a hot reminder notes area and is easy to erase and reuse for the next month. The writing surface features open space that is ideal for writing reminder notes, sharing information with coworkers or customers, collaborating, interacting and fully exploring your creativity. These dry erase surfaces are quick and easy to put on your wall. Just peel and stick and you're done. No tools needed. No damage done. They adhere to most hard, flat surfaces. Combine with other WallMates wall planners to create a custom dry-erase planning center.