FSC is the leading catalyst and defining force for improved forest management and market transformation, shifting the global forest trend toward sustainable use, conservation, restoration, and respect for all. Each label provides information about the origin of the materials used to make the finished and labeled product. forest stewardship council (fsc) Leitz 10105052, A4, Cardboard, Polyethylene, Turquoise, Silver, 600 sheets, 80 g/m² Leitz 10105052. Format: A4, Material: Cardboard, Polyethylene, Product colour: Turquoise. Width: 81 mm, Depth: 318 mm, Height: 285 mm. Sustainability certificates: Forest Stewardship Council (FSC)