Staetler Mars GmbH & Co. KG is a German fine writing instruments company and one of the world's leading manufacturers and suppliers of writing and engineering drawing instruments. The company was founded by J.S. Staedtler in 1835. The company produces many writing instruments, including drafting pencils, leadholders, professional pens, and standard wooden pencils. It also produces plastic erasers, rulers, compasses, and other drawing/writing accessories. Staedtler has over 20 global subsidiaries and seven manufacturing facilities. Its Noris line of pencils are extremely common in British schools.