This artist ruling pen combines functionality and style, offering a fine tip for detailed work and an adjustable feature for adjusted line thickness. Whether used for masking fluid, technical drawings, or artistic creations, it provides smooth performance and precise results, meeting the needs of professionals and hobbyists alike. Features -Color:Multi -Material:Metal, plastic -Size:14.50X1.00X0.50cm/5.70X0.39X0.20in -Exceptional line precision: for artists seeking refined line control, this pen enhances the accuracy of your drawings -adjustable line thickness: the adjustable tip design supports a wide range of line widths, making it suitable for diverse artistic needs - : the duckbill structure ensures smooth and consistent ink flow, reducing downtime and improving efficiency -Works on all paper types: compatible with various paper surfaces, ensuring clear and professional results for every project -Advanced masking features: pairs seamlessly with masking fluid pens to create intricate designs and elevate your creative potential Package list: 3 x Ruling Pen