FRIXION CLICKER ASSORTED BAR-CODED 144PC DISPLAY. Writes Smooth, Erases Clean. Erase and rewrite repeatedly without damaging documents. No wear or tear! Combines retractable convenience with the incredible FriXion erasable gel ink. Eraser is at the top of the pen, tip is retractable by pressing clip down. Unique, thermo-sensitive gel ink formula disappears with erasing friction.