These perpetual flip calendars are a great way to display the date on your board. They come with multiple options for displaying the date, so you can choose the one that works best for your needs. They're easy to assemble onto a magnetic curtain rod (not included) and work perfectly placed above your daily class agenda. Each set includes 12-month cards, 31 pre-numbered calendar days, 7 days-of-the-week cards, 3 pre-numbered year cards, and 1 blank card. The calendars have a shiny, protective coating, and the holes are pre-punched. Assembled flip calendars measure approximately 21 1/2" x 2 3/4". 54 pieces per pack.