Structures with giant arms, characterized by a double accented inclination of the cloth. Supports mounted on square bar 40x40 mm. Intermediary windbreak, attached on the elbows of the arms, through auto-centring trolleys, driven by cable. Such system also reduces the formation of knapsacks of water under conditions of least inclination of the cloth. Where possible, screws made of stainless steel. Painting by polyester powder in our factory performed following rigid qualitative standards. Ideal model for public rooms, terraces and shed main doors and wherever it is necessary to realize big coverings. Micrometric adjustment of the arms. Working only by motor.