The Pacon® Dual Ruled Composition Books feature two alternating ruling styles. The right-hand page offers a 3/8" wide ruling for traditional note taking and the left-hand page features a 1/4" grid ruling to draw coordinating graphs, illustrations and interpretations. Note taking in this manner engages both hemispheres of the brain. These durable, hard cover, one-subject books feature a Blue cover with Light Blue paper on the inside. Using colored paper has been shown to help students with dyslexia work through the impacts of this learning disability. Measures 9.75" x 7.5". Each book includes 100 Sheets (200 Pages). Sold as a pack of 12 books.