Brand New Fine Tip White Liquid Chalk Markers. ​ INK: Quick-drying ink guaranteed to leave no ghost shadows on any dry erase, glass, or most non-porous surfaces. ERASER: The cap of each marker is mounted with an eraser for convenient erasing function when needed while writing. MAGNETIC: The cap is also mounted with a magnet, which can easily hang the marker onto the surface of the magnetic Blackboard, or on any metal surface such as a refrigerator, file cabinet, etc. providing convenience to store or locate the marker. Compactly sized (4.5" in length) to work conveniently with various Black Boards and other surfaces.