It's Academic Re:Writes Ghostline Invisible Grid, 4 x 7 Inches, 2 Notes and 1 Dry Erase Marker (07075) Re:usable dry erase notes, write and erase your note Re:moveable, Sticks on most surfaces. Use Again and Again Features ghost line, the original invisible grid, visible up close, disappears from a distance. Includes 2 RE:writes notes and 1 dry erase marker