Lock your whiteboard markers to any metal surface with Expo magnetic dry erase markers with eraser. An integrated magnet provides convenient and care-free storage on metal-backed white boards and other metal surfaces. What's more, the cap features a handy Expo eraser for precise, on-the-fly erasing. Each Expo dry erase marker has a fine tip that draws bold details and quick-drying, low-odor ink that's perfect for both the office and classroom.