Extend the life of your favorite Pilot Frixion ball series pen with Pilot FriXion ball erasable gel ink refills. The Pilot Frixion Ball series makes mistakes disappear, without the white out. Pilot FriXion Ball erasable gel ink pens allow you to write, erase and rewrite repeatedly without damaging documents. FriXion's unique thermo-sensitive ink is formulated to deliver both vibrant color and smooth writing. Great for editing, lists, scheduling and so much more! Available in fine point as well as ultra fine point, and in a variet of ink colors.