Slackers Intro Ninja LineKids play in the air and learn to train like a real ninja when Slackers Ninjalines are set up in the backyard Ninjalines can be installed between 2 healthy trees or 2 posts* Slackers 56 Ninjaline is 56 feet long and 2 inches wide with 18 double sewn pockets to use with the 9 included hanging obstacles, with room to add on more Slackers Ninjaline obstsacles The 56 foot Ninjaline Intro Kit includes: Three (3) 10" Ninja Fists Two (2) 16" steel Monkey