Best value notebooks with a large range of sizes and grids. Extra white satin finish paper 90 g, which is pleasant for writing. Washable cover The cellulose fibres of the paper come from sustainably managed forests. 100% recycled, naturally white: no de-inking,no chlorine treatment, no optical brighteners. The NF environment certification combines quality and environment: its suitability for use and limiting of environmental impacts linked to the printing and manufacturing of the paper and product.