3 years & up. This neat calendar board is an excellent teaching aid for children to learn how to tell time! Kids will learn about hours, days of the week, weather, months of the year, seasons, and much more. Includes brightly colored slide bars and clock hands for interactive learning. Easily hangs on the wall. 6 pieces total. Calendar measures 12.25" W x 12.25" D x 1.25" H.