It helps children learning how to write. Lowercase letters start from the thicker line to the first thinner line above. Uppercase letters and taller lowercase l

It helps children learning how to write. Lowercase letters start from the thicker line to the first thinner line above. Uppercase letters and taller lowercase letters like "t" or "d" go to the second line. And the tails of letters like "g" or "y" go the first line below.