The Ruled Dry-Erase Boards, Two-Sided are great for teaching and practicing fundamentals at early learner stages. The bright, white board contains 5 sets of blue headline and broken midline plus red baseline format. These boards feature a high-quality, non-ghosting write-and-wipe surface with smooth, rounded edges and corners. Details:White12" x 9" x 0.125"Each line set measures 1 1/8" with 3/8" of blank descender space between setsPlastic, woodBack side is plain white dry eraseHardboard backing will not warp or chip