Find two trees (or posts or polls) high enough so that the rope can run over the heads of most people.The sling strap is 8 feet long which will work on most trees but larger trunks will require using two of the straps together. Attach one end of the strap to the carabiner. Wrap the strap around the tree, post, or branch as many times as needed, then thread the other end D-ring through the carabiner and pull out, adjusting and pulling at the same time. Alternately, you can clip the carabiner into both D-rings. Refer to the second image above. Look below to view the video.