One of our bestsellers is the OptiMA® exclusive one month magnetic refrigerator calendar. They are 17" tall x 22" wide strong magnetic sheets that fit almost perfectly on most magnetic receptive refrigerator units with a single door or on the side of the unit where it's less conspicuous and maybe a little more private. Each day block has plenty of space to write down the day's activities whether it be soccer practice or a dentist appointment. The actual space for each day is approximately 2.6" high x 3" wide. There are 37 blocks so you can fit every day even the longest months. We also provide a convenient section for notes at the bottom of the calendar. The notes section is 2.6" high x 15" wide. Each OptiMA® Graphic 30 day magnetic refrigerator calendar is printed on 20 mil magnetic stock and coated with our exclusive clear dry erase writing surface. These refrigerator calendars will last for a long time and give years of trouble free and ghost free writing with proper care and maintenance. Complete your magnetic calendar with the optional Opti-Wipe™ Dry Erase Kit. The kit includes your choice of a blue or pink Opti-Wipe™ microfiber cleaning cloth, four large magnetic marker rings and a set of four assorted chisel tip dry erase markers. The magnetic marker rings slip over the markers and allow you to stick them onto the refrigerator or any metal surface. Proudly made in the U.S.A. by skilled American craftsmen who thank you for your support! Tip: It is not recommended to clean these boards with anything containing ammonia which is found in most glass cleaners.