Turn Your Backyard into a Ninja Academy The Gentle Booms Ninja Warrior Obstacle Course for Kids Backyard blends energetic play with approachable challenge. Two parallel 65-foot slacklines open up space for sprinting, grip work, and balance drills, inviting kids and adults to explore movement...

Unleash Ninja Style Play in Your Backyard Turn your outdoor space into a dynamic Ninja Warrior playground with the Ninja Warrior Obstacle Course for Kids from Gentle Booms Sports. The 2×56 ft slackline setup creates a long, engaging course that invites kids and adults...

Discover a backyard Ninja Warrior experience Bring the thrill of an obstacle course to your yard with the Gentle Booms Sports Ninja Warrior Obstacle Course for Kids. This kit features a 2×56 ft slackline that creates a flexible, challenging trail, plus eight ninja accessories...