Marker pens feature erasable thermo-sensitive ink to let you write smoothly, erase cleanly and rewrite repeatedly without damaging your documents. Extra-durable, 0.6mm point creates vivid, fine lines for results that are sure to stand out. Quick-drying formula prevents smearing and bleeding through papers to help keep your handwriting legible. Marker pens with blue ink are perfect for students, administrative assistants, teachers, scheduling coordinators and more.