NinjaLine 36' Intro Kit with 6 Hanging Obstacles. Train like a Ninja with the 36' slackers Ninjaline with 6 hanging obstacles. This versatile backyard outdoor hanging obstacle course kit allows the obstacles to be moved further apart as your skills improve. The included obstacles vary in skill level. Best of all, it's easy to install and take down, meaning you can take your training with you! 2020 Kit includes: 30' (9m) 2" (5cm) Slackline webbing line w/ 6' (1.8m) Ratchet line ....