The starting point of this project was the idea that one can bent a material to give it a form. The folded sheet stool is a piece that ultimately illustrates three operations of shaping and assembling metal: cutting, bending, crimping. It shows the advantage of a very simple and symetric shape yet it offers various profiles depending on which angle it is observed, going from a massive appearance to a skinny silhouette.The choosen geometry is ribbon like, it bend like a loop but avoid itself at the crossing. This form was some kind of measurement standart to compare the stiffness and the résistance of a given material. Wood was the first to be confronted to this configuration simple but structuraly weak. The tests lead me to a much stiffer material : steel. With a 10mm thick steel plate, the geometry become stable as a sitting, we obtain a radical designed stool but that express efficiently one important feature of steel : it’s very high stiffness. Made of steel, it is a heavy weight, it is a seat, but it can become a stele or a tablet. It will also be available in aluminum, a clearer and much lighter version of the stool, and which offers a wide variety of possible finishes.