Pilot's FriXion Light Highlighters highlight with bright color and erase cleanly! FriXion's unique thermo-sensitive ink is formulated to deliver both vibrant color and smooth erasing. Great for editing, lists, scheduling and so much more! Highlights bright, erases clean. Brilliant fluorescent ink colors bring instant recall to important information. Highlight and erase repeatedly without damaging books or documents. No wear or tear! Unique thermo-sensitive ink formula disappears with erasing friction.