Invite children to enjoy hands-on learning with this colorful, reusable set. Included 17" x 22" reusable calendar offers an erasable surface for writing, erasing and rewriting. Wipe-Off Monthly Calendar Bulletin Board Set includes strips for Yesterday was, Today is, Tomorrow will be; 12 month headers; seasons spinner; weather spinner; three arrows; 33 seasonal accents; 31 cling date markers; and 19 cling special day markers. Included Discovery Guide offers creative activities that teach and delight.