The STAEDTLER 660 20 Mars Drafting Head is a transparent plastic template designed for A3 and A4 drawing boards. This set, featuring a medium nib, is ideal for technical drawing and engineering design. Made by the reputable brand Staedtler in Japan, this drafting head is lightweight at 0.23 kilograms and comes in a retail package, making it a convenient and precise tool for creating detailed drawings with letter print patterns. The multicolour ink/lead enhances visibility and accuracy in your work.