The sleek FUNCTION Stone Quick-Dry Gel Pen boasts a sophisticated stone and polypropylene barrel, a comfortable 0.7mm tip, and a smooth black gel ink cartridge that writes for an impressive 300 meters. Its convenient click mechanism ensures effortless use. As a proud partner of 1% For The Planet, FUNCTION donates one percent of all EcoSmart® product sales to environmental organizations, making every purchase a positive contribution to our planet.