Only available from Hammacher Schlemmer, this is the obstacle course kit inspired by the TV show American Ninja Warrior. The 66-piece kit sets up easily in a backyard and can be configured into over a dozen challenging and fun configurations. Providing up-and-coming ninjas an easy, safe, and fun way to emulate the competitive ninja athletes seen on TV, the course comes with two reinforced hop sacks, eight 14" diameter agility rings, two competition jump ropes, birch wood bear crawl posts with 150' of twine, and jump-through water hoop. Ages 3 and up.