The HSS Life Line is likely one of the best safety features on today’s market for elevated hunting and a "MUST HAVE" for all treestand hunters! Simply connect the Life Line rope at hunting height, attach your tether to the carabiner equipped Prussic knot on the Life Line and slide the knot as you go up or down the tree. Prussic connection slides easily with one hand yet stays ready to stop any fall should one occur. 30" of rope with 1 carribeaner and a Prussic knot is included.