This portable ground based activity offers tons of challenges. The base is 8 foot long and comes with a set of eight removable poles. Choose from 2.5 inch 3.5 inch or 4.5 inch removable top plates. Additional tops can be purchased so that you can change out the difficulty level. This challenge can be set up in a variety of ways. Start by placing all of the poles into the base and try crossing to the other end without falling off. Once you have mastered that you can also remove some of the poles to make the step distance further increasing the challenge. Looking for an extreme challenge… provide two or three poles and the person has to balance while lifting and moving the poles to traverse to the other side.?