The 70ft. Ultimate Obstacle is the ultimate in obstacle experience. The unit is completely enclosed preventing your attendees from jumping on or off midway through the obstacle. This is a feature that makes the unit more easily managed. The rope climb and slide are 16ft. feet tall making it a difficult challenge to even the most athletic teen or youth. The ARMY has nothing on us with the 70ft. Ultimate Obstacle in our inventory. The Ultimate Obstacle has 3 blowers and requires a dedicated 110V, 20amp household outlet. Fun Source rents generators for an additional charge. One generator will power 2 blowers.