About this item SIZE: The classroom rules poster measures 12 x 18 inches DURABLE MATERIAL: The motivational classroom poster made of quality paper,and it will be shipped flat pack,if you receving the product came somewhat wrinkle or other any question,please feel free to contact us,we will issue you a full refund or a replacement. EASY TO INSTALL: The classroom rules poster is shipped flat, square sticker comes in the package, peel and sticks it for this poster, that you can hang it in the…