Black Drawing Pens - Use them on strokes, vellum, and a wide range of papers. Artists can expect to be satisfied with line quality, pen build quality, and ink solubility. The ink flows freely, with a smooth glide allowing you freedom of expression, clean contours, detailed line drawing, as well as other drawing techniques. Architects, designers, illustrators, and sketch artists love these high-quality multiliner pens, because they meet all the demands of their ink work. Various Tip Sizes - Multiple drawing pens, 9 unique sizes to choose from. Includes 8 micro tip sizes: 0.008 in (005), 0.010 in (01), 0.012 in (02), 0.014 in (03), 0.016 in (04), 0.018 in (05), 0.020 in (06), 0.024 in (08). 1 soft brush tip. Offering a variety of sizes for your needs, these black fine tip markers are ideal for drawing and writing. EASY TO USE - Each pen comes with a coded cap and pocket clip cap, light weight, easy to hold, and incredibly durable. Excellent for taking beautiful notes, journals, technical drawing, and much more. Experience smooth, - writing and crisp ink colors that leave consistent lettering and lines every time. Pigment Ink: , non-refillable, odorless, archival quality, , and won't stain, fade, or chip. Our art pens conform to ASTM D4236. Works well with markers and ink. Photocopy , does not dissolve toner. Product Description： 9xSketch pen(Include 9 sizes, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, Brush.) Contains: 9 sizes, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, Brush. Single pen size: 14x1cm color: gray Color: Gray Various Tip Sizes - Multiple Drawing Pens, 9 Unique Sizes To Choose From. Includes 8 Micro Tip Sizes: 0.008 In (005), 0.010 In (01), 0.012 In (02), 0.014 In (03), 0.016 In (04), 0.018 In (05), 0.020 In (06), 0.024 In (08). 1 Soft Brush Tip. Offering A Variety Of Sizes For Your Needs, These Black Fine Tip Markers Are Ideal For Drawing And Writing. Contains: 9 Sizes, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, Brush. 9xSketch Pen(Include 9 Sizes, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, Brush.) Pigment Ink: , Non-refillable, Odorless, Archival Quality, , And Won't Stain, Fade, Or Chip. Our Art Pens Conform To ASTM D4236. Works Well With Markers And Ink. Photocopy , Does Not Dissolve Toner.