Dry/Wet Erase 6 Week Magnetic Calendars: Always be 6 week ahead in organizing your family's activities. Once the top week is over, erase it and move it to the bottom of the calendar, while moving the other weeks up. Each calendar kit comes with 6 weeks of separate strips, days of the week strip and all 12 months. Each week strip is 18 ½ inches wide and approximately 3 inches high. Each piece is completely backed with a quality magnet. Frame colors are: white, off-white, black, and brown.