Tailor Shape Earth Colors are inspired by traditional Tailor's chalk in their shape and size. They are a pigmented Graphite block, from the ArtGraf line of water-soluble drawing media. Use wet or dry to product a wide range of shades from light to opaque. Handmade in Portugal by the Viarco company. This set of 6 colors comes with a flat cork holder. Each block measures 1.75 x 2 inches and are available individually.