Staedtler Mars GmbH & Co. KG (German pronunciation: [ˈʃtɛtlɐ]) is a German multinational stationery manufacturing company based in Nuremberg. The firm was founded by J.S. Staedtler (1800–1872) in 1835 and produces a large variety of stationery products, such as writing implements (including technical drawing instruments),[1] art materials, and office supplies. Staedtler claims to be the largest European manufacturer of wood-cased pencils, overhead projector pens, mechanical pencils, leads, erasers, and modeling clays