50% less sag or recoil! - Because the user is supported by two slacklines instead of one there is greater support which prevents the obstacles from bouncing up and twisting over the line when the user dismounts. Adjust the course anyway you like - Our Double Obstacle Line has unique buckles that allow you to customize the obstacle positions in any order and any distance apart that you'd like. Manufacturered by Lily's Things. Safe and high quality - We believe in safety before all else. Our equipment is factory break tested to sustain very high forces and is made from high quality industrial strength materials. Very safe for your little ninjas. Money back guarantee - We are committed to your satisfaction. We offer a full 100% money back guarantee if for any reason you are not completely satisfied with our product. Monkey bars that hang perpendicular to the course! - Unlike any other set our patent pending double line design allows for the monkey bars to hang perpendicular to the course as they should!