Leather, 3D, unusual use of. A soft material where the shape, dimension and the way the leather is cut and joint makes it hold its structure. There is no frame. The metallic parts only bind together different pieces, and also connect them to you. This is the theme. There are different things that correspond to this property cluster, a unicept in the language of thought: recent trials, future ideas, abandoned ideas, related ideas and the objects in this collection all belong to this new mental entity.