The Pilot FriXion Pen allows you to erase ink as easily as you would a pencil mark! Simply use the eraser on the end of the pen to remove ink via friction generated heat. The smooth ink flow prevents blots and bleeds ruining your page. With a convenient retractable design and rubber grip for comfort in use, even over protracted periods of writing. The fine 0.7mm nib writes a 0.4mm line width. This pack contains 12 black pens. FriXion rollerball with erasable ink Ergonomic rubber grip for comfortable use Ink flows smoothly without surfeit or drying Erasure is as easy as with pencils Fine 0.7mm nib for a 0.4mm line width Convenient retractable design Not recommended for important documents/signatures Ink colour: Black Pack of 12