Connect the hose to the Blue Nozzle on the pump.
Choose a right size needle and attach it firmly to the black connector.
Remove the Plug.
(If this is the first time you inflate the ball, you can skip this step, because there is no plug in the new ball's hole.)
Inset the needle into the inflating hole firmly.
Inflating the ball with foot pump.
Quickly plug the hole and finished.