Red and blue ruled dry erase boards (double-sided) are great for teaching and practicing fundamentals for early learners. Bright white board contains 5 sets of blue headline and broken midline plus red baseline format. Each line set measures 1 1/8" with 3/8" of blank descender space between sets. Back side is plain white dry erase. Boards feature a high-quality, non-ghosting write-and-wipe surface with smooth, rounded edges and corners. Hardboard backing will not warp or chip. Measures 12" x 9" x 1/8" thick. Available individually or in a set of 12.