The system has the feature of being double-faced since both sides can be installed on sight with a flat or curved aesthetic effect. Cord operated. For use with curtains 600 cm w max.and 300 cm h weighing up to 6 kg. The opening can be central, lateral, multiple or asymmetric. The system is suitable for ceiling installations using inset steel keys. The running of the operating cords in independent channels allows systems with 90° curves or with wide radius centring to be installed. Sliding is guaranteed by self-lubricating polyethylene slides or by roller gliders for curtains at the load limits.