The Expo? 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--big or small and is perfect for quick notes-on-the-go. The eraser?s thick felt traps dry erase dust. Marker Type: Dry Erase Kits; Assortment: Black; Blue; Red; Color(s): Assorted; Tip Type: Chisel.