The Pilot FriXion Ball Knock gel pen is a retractable version of the popular Pilot FriXion line. This deluxe version presents a new sleek and stylish body and a convenient retractable tip. It has a thermo-sensitive ink that can be erased with special rubber at the end of the pen. Simply rub the rubber tip over the writing, the ink disappears cleanly and there are no eraser shavings.
Each set includes ten colors: black, red, blue, blue black, green, light green, orange, pink, light blue, and violet.
