Expo-Magnetic Dry Erase Fine Marker With Eraser: Black. These dry erase markers have an integrated magnet for convenient storage on metal surfaces and a handy eraser on the cap. They also feature a chisel tip that draws three line widths and low-odor, quick- drying ink that is perfect for the office and classroom. This package contains four 5-1/4 inch long magnetic dry erase markers. Conforms to ASTM D4236. Imported.