Evolution of the single parasol astro with innovative opening and closing system assisted by a gas spring. Retractable structure that allows opening and closing above tables and chairs without moving the furniture. Suitable for all environments and recommended for a commercial employ (bars, restaurants, hotels and terrace dehors). With highly durable wood finish aluminum frame. Impervious to saltwater and uv degradation. An innovative and highly appreciated effect in the outdoor branch. Strong structure composed of 4 parasols anchored to a single support.