There are the letters that stand tall in the mud, the letters that sit in the mud, and the letters that dig their feet into the mud. There is paper for each size (standing, sitting, and digging), and I use them by printing them onto magnet paper so that I can put them on the white board. Then I print all of the letters onto magnet paper and cut each one out. The standing letters have to touch the sky and be stuck in the mud. The sitting letters are short and stuck in the mud, and the digging letters are short and they dig their feet down into the mud.