Flipside Two-Sided Lined Dry Erase Boards are great for teaching and practicing writing fundamentals with young students. They save paper, too! The bright white boards feature five ruled lines in the classic blue and red format. Each line set measures 1-1/8" with a 3/8" descender space between sets. The other side is a plain white dry erase surface. Write on the boards with standard dry erase markers (sold separately) then easily wipe them clean. The high-quality surfaces are non-ghosting and have smooth, rounded edges and corners. Their durable hardboard backing is warp- and chip-resistant, so they'll stand up to repeated classroom use. The boards measure 9"H × 12"W × 1/8"D . They're sold individually or in a Class Pack of 12.