Universal connector #tubes it has the grunt to

it has the grunt to do both comfortably and accurately

The locking button on the side releases it so there's no need to hold it on the valve

Designed and engineered specifically for track cyclists 
and high-performance 
wheelchair sports

but when you do it just gets the job done without pfaff or mess

Universal connector #tubes it has the grunt toAttach your favourite chuck to your favourite Fumpa with this straightforward adaptor which converts the Fumpa extension hose to a Schrader screw thread. Note: It comes as a connector only you will need to buy accessories like Fumpa elbow nozzle, Clik adaptor or Hiro chuck separately. Nickel plated brass construction with a quick release ring on one end to connect directly to Fumpa air hoses, and a Schrader thread on the other to connect to chucks.