Dry Erase large wall calendar. Reuseable. By the way, on an average, the calendar will be seen ten times per day in the office; the positioning of a calendar will always be a prime spot, 80% chance of reorder and (average order) repeats 8 years!! Last but not least, think of your cost per impression...under .01! Calendars are the 8th largest category too!! Show your client calendars and walk away with an annuity program.