Rotring Rapidograph Technical Drawing Pen College Set, 4 Pens with Line Widths of 0.25mm to 0.7mm, Brown (S0699570) 4 Piece Pen Set perfect for College-level students includes 4 rapidograph pens (.25MM, .35MM, .5MM, .7MM), 12 hi-polymer HB leads, 1 B20 eraser, 6 ink cartridges and 1 compass attachment The precision ink pen with the innovative refillable capillary cartridge system For tracing paper, vellum drawing paper and lineboard Features a crafted stainless steel nib Color coded barrel indicates line width <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.