Sakura Color Products Corporation is a Japanese stationery company founded in 1921. The company began as a crayons manufacturer and is now best-known for its marker pens, such as the Micron line. The company also invented the first-ever oil pastel that combined oil and pigment, known as the Cray-pas ... Read More line. Sakura's most popular product lines include Pigma Micron pens and markers, Gelly Roll gel pens, and Cray-Pas oil pastel sets. Other bestselling products include the Pen-Touch marker sets and Koi watercolor sets, which are water responsive and quick-drying. The Sakura Collection Cube sets combine several pens into sets of black, metallic, or color. Sakura's most recent innovations are dimensional inks, the Glaze and Souffle collections, which write with a raised effect similar to embossing. The 3D inks can write on paper, glass, ceramics, metal, and plastics.