Raise the 2 ft. log up to your desired jumping height. This 6 ft. jump pictured, shows one log on the Pole, which is for a 10 ft pole, or choose an 8 ft. pole to make it a skinny.  To create a 12 ft. jump we add a second log. Two logs will cover the entire 12 ft. pole to make a 12 ft. log that you can set at your desired height.