An allusion to the Tetris game, a highly creative and technological formal composition. Lib_ris, beyond the free modular system composed by seven elements of different shapes and sizes, is presented with 3 predefined modules, in high resistance extruded aluminum, that could be used vertically or horizontally and combined between them, extending themselves for duplication of the same elements. The square and rectangular module could also be fixed to the wall through a special kit (under previous approbation). The elements are made by assemblage at 45° by means of a reinforcement core inserted in the bent head-milled respecting each connection side. The joint is guaranteed through the use of a polyurethane based adhesive of high resistance. The connection of the elements is given by the means of a double thread broach (male and female) hexagonal shaped, inserted in proper holed place for the assembling and available in two different sizes: one to connect the elements and another one to close the cavities when there are no elements to be added. The finishing is performed with liquid paint application. Available in white, black, brown, gray, red and dark brown.