Perforano is one of the few pieces of Spanish design that have never been bettered and which can be expected to remain commercially viable. The secret lies in its well-know virtues. Its ergonomic shape, wisely adapted from the bench Antoni Gaudì designed for Güell Park. The fundamental change of Perforano, rispect to Catalano, consists in replacing the "deployè" with perforated sheet steel. " We thus lose elasticity and use more material, but the seat gains a less aggressive texture and is much more resistant to corrosion and vandalism". On the basin of this change in the material, the structure and the lenth of the module have also been modified, giving rise to a new handling of the aesthetic.