The bright white sheets contain 5 sets of blue headlines and broken mid-lines plus, a red baseline format. Each line set measures 1.12" with 3/8" of blank descender space between sets. The back side is plain white, dry-erase with a blue border. Both sides of the learning mats are magnetic receptive allowing for use with magnetic manipulatives. The mats feature a high-quality, non-ghosting write-and-wipe surface with smooth, rounded edges and corners. Each sheet measures 9" x 12". Available in packs of 12, 24, and 48.