Part Number: P054177. Package Includes: 1 Stylus Assembly. Precision Marking and Writing: The P054177 stylus is a metal component that fits inside the tip of the CP9361 Air Engraving Pen. It is specifically designed for marking and writing on various surfaces, Whether you're engraving metal, glass, or other materials, this stylus ensures accurate and detailed work. Compatible With: Chicago CP9361 Air Engraving Pen/Air Scribe. A brand-new, unused, unopened, undamaged item in its original packaging.