The erasable Frixion Clicker is a unique retractable gel pen that contains thermo sensitive gel ink. The heat generated by friction when rubbing the paper with the special tip turns the ink invisible. With no damage to the paper, you can erase and instantly re-write over your mistakes. Perfect for everyday use at home, work or school. Retract the tip by clicking the convenient pocket clip. Frixion Clicker is available in a wide range of colours. ; The Pilot Frixion Ball Fine Erasable Gel Pen is an innovative gel pen which allows you to erase and instantly rewrite over your mistakes. Simply rub the silver rubber tail over your mistakes and the friction generated turns the ink invisible. The pen has a retractable design so you can easily take it on the go. NOTE: Do not use Frixion Clicker on legal documents or cheques, or when writing exams. Features The pen has a fine 0.7 mm nib. It is ideal for everyday use as you can instantly amend any mistakes made while writing. The friction generated by the rubber turns the ink invisible instantly so you can write over it straight away. You can erase your work using the rubber tail that is built-into the pen. It won't damage your paper when you erase your writing. This pen contains blue ink. It's easy to protect your nib when you're on the go thanks to the retractable design. You can use any Pilot Frixion Erasable Gel Ink Refill with this pen. What's in the box- 2x Blue Pilot FriXion Ball Clicker 2x ;Red Pilot FriXion Ball Clicker 4x Black Pilot FriXion Ball Clicker