Don't run out of your eraser again! For these Pentel(R) mechanical pencils: QE405, QE407, QE409, QE505, QE515, QE517, PD255 or PD257. Pentel Erasers part of a large selection of office supplies. Pentel(R) Twist-Erase Mechanical Pencil Eraser Refills, Pack Of 3 is one of many Eraser Refills available through Office Depot. Made by Pentel.