Alfaro is possibly the sculptor that best captured the potential afforded by the play of post-constructivist geometry. As a founding member of the and the Normative Art movement, he had close bonds with Russian , and his work became more geometric and analytic.

His sculptures, in which he used rods, tubes or laminated profiles treated with standard cut and fold methods, would soon give way, from 1972 onwards, to what he called generatrixes, a series of square-section tubes assembled around a central axis, which enabled him to address his works at any scale.

While Alfaro’s sculptures have an abstract appearance, they are not lacking in form, as the title of the work indicates. Hiding behind the geometry of the composition is a figurative image that becomes evident, as is the case of this series of folded rods supported on a base to form a double fan or, as the title suggests, “sails in the wind”.