Designed for versatility, this adjustable drawing pen is for creating straight lines, detailed patterns, and fluid designs. Its innovative tip allows for seamless transitions between different techniques, making it suitable for cartography, architectural plans, and artistic sketches. A dependable tool for enhancing creative expression. Features -Color:Multi -Material:Metal, plastic -Size:14.50X1.00X0.50cm/5.70X0.39X0.20in -Precision drawing tool: designed for artists and architects, this pen provides exceptional control for intricate line work and detailed designs -Adjustable nib functionality: the adjustable nib allows for seamless transitions between fine and broad lines, enhancing artistic versatility -Reliable ink distribution: the duckbill design promotes steady ink flow, preventing clogs and ensuring uninterrupted creativity -Adaptable to various papers: performs a range of paper types, delivering sharp and precise lines for both drafts and finished pieces -Masking fluid compatibility: ideal for use with masking fluid pens, enabling detailed pattern masking and boosting artistic freedom Package list: 3 x Ruling Pen