Use this flexible rubber cuff to form an easy, quick and close connection between 63mm hose and a machine extraction port or spigot. At one end of the cuff there is an internal moulded thread (right hand), allowing you to screw it directly onto 63mm clear hose. The other end of the cuff is a snug fit over 70mm diameter, machine extraction port. The 70mm portion is 40mm long after this an internal step reduces the diameter to 63mm. The walls are 4mm thick giving it an external diameter of 78mm. The cuff makes it easy to connect and re-connect your extractor between one machine and another. Please note, this cuff fits all current Axminster clockwise spiral 63mm clear hoses.