The AV Stumpfl VarioClip Lock middle strut is a frame or system component with a length of 69.5 cm. It is supplied without studs or press buttons and is intended for use within the VarioClip Lock system. The component has a net and gross weight of 1.0 kg and is identified by manufacturer article number BCL-X/MST/X069,5. It is manufactured by AV Stumpfl.