This is somthing that people often overlook on their kite bar. However it is a useful bit of kit that opens up all sorts of different tricks and add's control to the rider. I use the stopper ball when I am on the beach for control, when I am on the water for no-handed tricks and generally adjust it a lot when I a riding! It can come in handy and also allow you to customise the de-power throw to the length of your arms if you want a more permanent setup... Sit back and watch how to use your stopped ball correctly!