Dual-sided industrial permanent ink marker Experience the versatility of Dura-Ink® Dual Tip permanent ink markers and conveniently create both fine and micro-sized marks with one marker instead of two. Versatile, two tip design can tackle jobs both big and small, and the industrial-strength ink writes on most any surface - allowing for faster, more efficient marking in a variety of applications. Save time and money by replacing two markers with one that can switch tip sizes to create both fine and micro-sized marks Versatile dual tip design is excellent for broad writing on large spaces and ultra-fine precision marking on small surfaces Industrial-strength permanent ink dries quickly and is wear and weather-resistant for longer lasting marks Built-in clip-caps snap into each other, preventing lost caps and marker from rolling off work surfaces Durable plastic barrel reduces breakage on the jobsite or in-plant Xylene-free ink for a safer marking tool Metal Fabrication Construction Autom