This exhibition has been realised at the Palazzo Triennale of Milan, commissioned by Pelma company, leader in the polyurethanes industry production, designed by the arch. Riccardo Giovannetti. It has been a suggestive work of creating concave and convex shapes realised with the costumer’s product and specifically studied in order to obtain different shapes and effects. Following this concept, the entire exhibit wall has been covered, with dimension 12×5m. In the middle of the exhibition space has been created a frame with single pieces that have been applied with a precise laying order with the aim of forming a big sitting, where the visitor had the possibility to try the variety of the polyurethanes’ consistence.