Plan a month or two ahead with this undated wall calendar. Erasable and reversible, the calendar is extremely flexible to allow you to plan on a 90-day or 120-day time frame. Calendar is undated for flexible planning. Erasable write-on/wipe-off surface helps you to manage changes to your plans. Reversible format has a 90-day calendar on one side and 120-day calendar on the other. Each side has unruled daily blocks. The 90-day side also has space for notes and next month priorities. One wet erase marker is included.