Available in two sizes:
- 3 inches x 5 inches (W x L). This is best for shorter lines of text, like regular-sized paperback, books with two columns of text on a page, math problems.
- 3 inches x 8 5/8 inches (W x L). This is best for longer lines of text, like in children's books, worksheets, larger volumes, printed documents, or science or math equations.