The Rite in the Rain All Weather Metal Pen is a durable and versatile writing tool that can withstand extreme conditions. It features a powder-coated brass barrel, a pressurized ink cartridge, and writes smoothly through various substances.Through a partnership with 1% For The Planet, one percent of sales of all EcoSmart® products will be donated to environmental nonprofits. - Durable powder-coated brass barrel and pocket clip - Pressurized ink cartridge works in temperatures ranging from -30F to 250F, underwater, and at any angle. - Writes through water, sweat, grease, and mud without smearing. - Includes a 0.9mm tip and provides black ink.