The adapter. It can be used for both inflating and deflating.high-volume air pump is made of rugged heavy-gauge plastic and the air bellow is constructed with durable nylon fabric air bellow.The air displacement per stroke is generous. Collapsible for easy storage.Inflatable Boat, Raft High Pressure Foot Pump comes with long Inflatable non-kink hose with HR valve Inflatable Boat Foot Pump Specifications: Material:PP & Nylon Unique adaptor to suit for HR valves. Air displacement(per stroke): 5LHose Max pressure:4.35PSI/5.80PSI Length:59inch (1.5 Meter)Max pressure 5.80PSI Dimensions:26x20x21cm/102x7,9x8. Package weight:732g/25,8oz/992g/35 Package List: 1*Foot Pump