These Sharpie Metal Permanent Markers have a sturdy aluminium barrel which ensures that they will last you a long time. They feature a bold, 1.5 mm acrylic fibre nib which will produce bold, easy to read lines. These markers will write on a wide variety of surfaces, including those that are oily or wet. A bullet tip helps you make clear, precise marks, while the large ink supply won't quit on you The ink is quick-drying and fade- and water-resistant, so your writing lasts for a long time, Uncap the possibilities with Sharpie Durable metal body helps markers last a long time Permanent, bold black ink great for use on paper, plastic, wood, and leather Bullet tip for clear, precise marks Quick-drying ink is fade- and water-resistant Excellent for marking corrugate wood metal foil stone plastic leather and more Durable blocked bullet tip and metal barrel stand up to heavy use Permanent on most surfaces Fade and water resistant Quick-drying ink AP certified nontoxic formula