Update your science, technology or math classrooms with Ghent’s Grid Magnetic Whiteboard, featuring a grid pattern that's ideal for charts and graphs. The dry-erase surface won’t stain or ghost and the durable steel and aluminum construction withstands years of heavy use. The grid graphic is printed in gray to match any décor. Each board includes a removable tray, black marker, marker clip and an eraser. Choose a one-inch by one-inch or two-inch by two-inch pattern. Available in four board sizes.