Magnetic Clip Eraser mounts to any magnetic whiteboard surface, making it as easy as ever to erase and refresh your whiteboard. This eraser keeps everything at your fingertips on your magnetic whiteboard and is perfect for quick notes on the go. The eraser's thick felt traps dry-erase dust and makes it easy as ever to refresh your whiteboard. Expo low-odor markers are certified AP nontoxic. Ink conforms to ASTM D-4236.