What better way to get the blood flowing and the adrenaline pumping than This 100ft Obstacle Course?! Squeeze through tunnels, jump over barriers, slip underneath bars, and push your way past any obstacle that comes your way while trying to move as fast as possible! The MEGA 1-2-3-4 is a great option for any event that wants to get people moving and having lots of competitive fun. The 4th piece is Huge! Its Rock climb section is the most challenging part!