The safety leash, also known as the kite killer, serves to ensure safety when flying a kite or steering mat. Should you find yourself in a dangerous or confusing situation, you can simply let go of the kite and it will slide safely to the ground. This prevents you from endangering yourself and others. There is also the positive side effect that your steering mat cannot run away as soon as you let go of your steering bar.
To use the safety line, you simply attach it to one of the lines behind the handlebar with a book knot. In addition, you attach the Kite Killer to your wrist with Velcro. If an emergency situation arises, you can simply let go of the handlebars. Your kite will lie on its side and go down relatively gently as it is only hanging on one line. If you suddenly have to part with your kite, you pull on the red "panic strap", which then quickly detaches the Velcro from your wrist. The Velcro fastener also adapts perfectly to your wrist, as it is universally adjustable and therefore very comfortable.