These two-sided boards are easy for students to write and draw on. Not only do they easily wipe clean, the boards also feature a non-ghosting surface. Use only with dry erase markers. Details:White6" x 9" (15.24cm x 22.86cm)12 boards2-sidedNon-ghosting write-and-wipe surfaceUse only with dry erase markersFor ages 3 and up