Pilot FriXion Ball Erasable Gel Ink Stick Pen Blue Ink .7mm 31551

Blue 0.7 mm fine point erasable gel ink pen allows you to erase, rewrite repeatedly without damaging documents and comes in a dozen. Write, delete and repeat. Erase and rewrite repeatedly without damaging documents. Thermo-sensitive gel-ink formula disappears when erasing friction is applied. Smooth-writing gel ink. Blue. If pen is exposed to temperature that reaches 140 degrees Fahrenheit, the ink will appear colorless when writing. To restore color, cool to at least 14 degrees Fahrenheit in freezer and the ink will again write in color. Sold as 1 Each.