Mitsubishi Uni NanoDia 2B Hardness Low-Wear Pencil Lead | 0.5 mm***I SHIP WITHIN 24 HOURS BUT CANNOT GUARANTEE THE SPEED OF DELIVERY WITH ANY CARRIER. THERE ARE ABSOLUTELY NO GUARANTEES ON DELIVERY TIMES FOR ORDERS. THANK YOU!*** ________________________________ ***YOU ARE PURCHASING A SINGLE PEN UNLESS THE "SET" OPTION IS CHOSEN IN THE DROPDOWN MENU AT TIME OF PURCHASE. INK LEVELS IN PENS VARY FROM THE MANUFACTURER.*** * Remains crisp smooth because Nanodaiya is a proprietary lead formulation * Since the graphite