Expo Low Odor Ink Dry Erase Markers are used on non-porous surfaces such as whiteboards and glass. Marker comes with a fine tip. The marker can also be used on the JVCC MAG-01 write-on/wipe-off white magnetic tape we also offer for sale. The low odor formulation is ideal for classrooms, small offices and homes. The markers offer consistent, bold colors and have great erasability.