OptiMA® offers dry erase calendar magnets and magnetic refrigerator calendars, ideal for busy households, offices, or classrooms. These calendars are sturdy enough for industrial use yet stylish enough for any environment. Measuring 17" tall by 22" wide, they feature a powerful magnet that adheres firmly to any steel surface. The unique OptiMA® writing surface works with both wet and dry erase markers and wipes clean effortlessly. You can also purchase most of our magnetic refrigerator calendars or whiteboards with an optional accessory kit, which includes an Opti-Wipe™ microfiber cleaning cloth, a set of dry erase markers, and magnetic marker rings to keep your markers accessible. Additional accessories are available for separate purchase as well.