alloutdoor Ninja Twister for Family Obstacle Course KitThe twister is GreenRecommended for the ages of 5 upwards. Parents supervision and participation is advised and encouragedStart your training with these slackers obstacle course elements! Each component provides a unique challenge, but all take strength and agility to conquer. Incorporate individual pieces into your own backyard obstacle course or try the kit options for a diverse and all-encompassing ninja experience. Slackers lines feature steel ratchets for a safe, tight fit and easy up and down. Pieces can be placed in any order and spaced closer or further apart to increase difficulty. *PLAY IN THE AIR- Spin the day away with the Ninja-Twister. Just hang on the bright redhandle and give a little twist, you wont believe the spinning power! Watch your child Twist, Spin and Swing like a true Ninja Warrior! *EASY TO INSTALL- With its versatile design, the Slackers Ninja-Twister is easy to install. Our signature adjustable poly rope with carabiner is perfectly designed for quick attachment to your Ninjaline, Tree Branch, or Swing Set.