The shutter consists of two parts connected with firm straps, and opens in two stages. Initially, when the operator opens the upper section of the curtain, the lower section remains in place. During movement of the bridge towards the plane, this lower section of the curtain functions as a safety barrier. When the bridge is close enough to the plane, the lower section can easily be opened and passengers can pass through.

The shutter is equipped with safety devices that prevent any entrapment of feet, hands or fingers when the shutter is opened and closed. The shutters are mainly constructed from aluminium and polycarbonate. For the hinges we use high quality extruded and anodized aluminium. The transparent windows are made of polycarbonate with special additives which protect against chemical solutions and feature a UV stabilizer.