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 1.125" with 0.375" 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 0.125" thick. Available individually or in a set of 12.