440/1: geared-down clutch (1:5) action; Suitable for blinds max L 500 cm and max H 300 cm weight no more than 6 kg. 440/2: direct clutch (1:1) action; Suitable for blinds max. L 400 cm and max H 300 cm weight no more than 3 kg. The system is equipped with an aluminium box with ends in impact resistant moulded plastic. Winding takes place by means of tape winders driven by a clutch mechanism worked by a chain-pull that determines the position of the blind. The tape winders are equipped with a release mechanism for quick blind removal. Ceiling or wall mounted by means of special extending brackets.