Ideal for both beginners and professionals, this ruling pen is a must-have for drafting, outlining, and fine detailing. Its ability to produce clean, straight lines makes it suitable for architectural sketches, comic illustrations, and intricate designs. The pen's adaptability supports diverse artistic styles and creative needs. Features -Color:Multi -Material:Plastic, stainless steel -Size:14.70X1.00X1.00cm/5.78X0.39X0.39in (Size XL) -Size:13.50X1.00X1.00cm/5.31X0.39X0.39in (Size L) -Size:13.00X1.00X1.00cm/5.11X0.39X0.39in (Size M) -Size:12.50X1.00X1.00cm/4.91X0.39X0.39in (Size S) -Variable line width: equipped with an adjustable line width feature to accommodate diverse creative needs, improving drawing efficiency -Exact straight lines: facilitates exact straight line drawing, addressing of lines and enhancing the professionalism of your artwork -Reliable ink flow: the duckbill pen tip provides reliable ink flow, minimizing ink breaks and maintaining a clean drawing surface -Wide range of uses: suitable for manga, illustrations, architectural designs, and more, inspiring limitless creativity -Sturdy construction: built with sturdy materials, ensuring use without compromising performance, and reducing replacement frequency Package list: 8 x Straight pen