Pentel Marker Bullet Tip Black N50-A is a durable permanent marker that uses long-lasting, water-resistant Pentel black ink that dries immediately and does not smudge. The bullet tip produces a 1.5mm - 2mm line and it is suitable for almost any surface rough or smooth. It is made from bonded fibre so its shape is retained and a heavy duty aluminium barrel ensures the pen lasts as long as the ink inside. Key features: Black permanent ink Line width 1.5-2.0mm Writes on almost all surfaces, rough or smooth Immediate dry / no smudge Durable tip and casing