FriXion Ball The FriXion line of pens write smoothly and erase cleanly so you can erase every 'oops' (the written ones, at least). FriXion offers you unlimited do-overs so you can write, erase, and re-write until you get it right, without any wear or tear to the paper or messy eraser crumbs. The heat generated by erasing friction causes our unique thermo-sensitive gel ink to become clear so the words disappear completely from the page. Mistakes are a thing of the past with FriXion. Now nobody needs to know it wasn't perfect the first time! FriXion is America's #1 selling erasable pen brand Writes smooth & erases clean, so you can write, erase & rewrite repeatedly without damaging documents - no wear or tear! Unique thermo-sensitive gel ink formula that disappears with erasing friction *Note: Erasable pens are not recommended for use on legal or office documents. Do not expose to extreme temperatures (140℉) If pen is exposed to temperature that reaches 140℉, the ink will be colorless when writing. To restore color, cool to at least 14℉ freezer and the ink will again write in color. Item: Frixion Ball Erasable Gel Ink pen. Dozen BoxInk Color: BlackPoint Type: FineItem UPC: 72838315502Item number: FX7--BLKRefill number: FX7R2BLK