Dry erase calendar magnets and magnetic refrigerator calendars from OptiMA® are the perfect tool for any busy household, office or classroom. Strong enough for any industrial setting but contemporary enough for almost any setting. Each is 17"" tall x 22"" wide with a super strong magnetic strength to hold onto any steel surface. The exclusive OptiMA® writing surface can be written on with either wet erase or dry erase markers and it will wipe clean every time. You can order most of our magnetic refrigerator calendars or whiteboards with an optional handy accessory kit that includes an Opti-Wipe™ Micro-fiber cleaning cloth, a set of dry erase markers and magnetic marker rings to keep the markers handy. Accessories can always be ordered separately too.