The Sliding Stopper and the Stopper Ball permit you to adjust the depower lines on the water. Particularly in light wind conditions you will be more comfortable if you do not have to constantly hold the weight of the bar. It has two different settings for more and for less traction. To change the settings, all you need to do, is to take the ball of the depower lines, turn around the ball and reassemble it.
The Sliding Stopper Ball also reduces wear on the depower lines.
Caution: since this system is able to reduce the kites maximum depower, it should only be used on the water and at a safe distance from dangerous objects. The Free Sliding Stopper is easy to operate with one hand.