Pilot FriXion Point Synergy Clicker 05 Pens 17336, Black Erasable Gel Ink, 0.5mm X-Fine, Pack of 2. FriXion Point Synergy Clicker Erasable Gel Pens feature an innovative, patented, Synergy Tip design for detail, durability and incredibly smooth writing. Gel ink erases clean so you can write, erase and rewrite repeatedly without damaging documents. Unique, thermosensitive gel formula delivers bold, vibrant color that disappears completely with erasing friction. Extra-fine tip is perfect for precision writing. Press the clip down to retract the pen. Refill with FriXion refills P1A77343.