Use neon dry erase markers on this economical, unframed lap board with a plain black dry erase surface for doodling, math or handwriting practice and more! Its quality write-and-wipe surface is non-ghosting and the hardboard backing is warp and chip resistant. The rounded corners and smooth edges provide comfort and safety. Details:Black18" x 24" x 0.125"Smooth dry-erase writing surfaceAdhesive squares included for easy installationLightweightReusableWipes clean