Slackers Ninjaline Rope Ladder builds coordination, balance and strength all while youre having fun. Its a great addition to your Ninjaline Intro or Pro Kit (sold separately) obstacle course, adding another level of challenge. High-performance polyethylene 8-ft. rope ladder with solid-wood rungs features a loop attachment that wraps around a tree or hooks to your Ninjaline no hardware needed. Ages 5+. Wt. capacity: 175 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.