K-4 Credan is a single-sided cardboard made of soft craft material. Ideal for simple packaging and buffing It is also used to prevent damage to the product. FSC Certified Product Display (FSC Trademark) FSC (Forest Stewardship Council) Forest Certification is a system of certifying well-managed forests. We assess and certify the forest that manages and carvings are done in consideration of the environment and community. And you can display your own logo (FSC trademark) on wood and wood products (including paper products) that are made from the forest. The paper used for this single sided cardboard is produced from forests that have adequate control (not illegally cropping) in accordance with FSC rules. Environmentally friendly product.