Water-soluble colored pencils in a sturdy metal box. 80 watercolor pencils with a 3 mm lead, hard and durable. The colors are water-soluble and lightfast. Well suited for watercolor, washes, hatching, and combining with waterproof pens, wash pastels, or gouache paint. Developed and manufactured in Switzerland. The Swiss value share of the production costs is at least 60%. FSC certified (responsible forest management). FSC stands for "Forest Stewardship Council" and is an international certification system for more sustainable forest management. The wood used in furniture, toys, books, notebooks, or pencils with the FSC label comes from responsibly managed forests. There are ten globally applicable principles that must be adhered to by all FSC standards in different countries. Forests and plantations that are FSC certified are managed according to stricter ecological and social principles to support the long-term preservation of forests.