Channel your inner ninja with Pilot's limited edition Frixion erasable rollerball, created in collaboration with the Naruto: Shippuden anime series. The Frixion's clever ink turns transparent when subjected to friction. No eraser dust, and the line disappears very cleanly leaving only a faint impression of the erased line. The ideal way to erase is using the built-in eraser, though most hard plastic works OK. In fact if you're working on newsprint (eg. crosswords and Sudoku), the cap-end works better than the eraser as the eraser will smear the newspaper ink. 0.5mm tip. Set of 3 including one each of Sakura (red), Naruto (blue) and Kakashi (black). Refillable with Pilot BLSFR refills.