How Do I Fill Up My Knocker Ball? - Mar 3, 2017
To inflate Knocker Ball, you can use our electric air pump for inflation, and both 110V and 220V are available in different sytle plugs. Usually, fill time is around 2 to 4 minutes depending on the size of the ball and pump you are utilizing. Please make sure not to over-inflate your soccer zorb balls, and we recommend about a 2 inches depression with your hand when you pushed on a filled ball, which should be firm but not hard. If it is over-inflated, when the players hit each other it can cause a breach. You need to allow a little space for the air to move inside the ball upon impact.