RenGard 18W Ultra-efficient Solar Panel Phone Battery Charger for Smartphones & Tablets:Android (Navy) <span class="a-text-bold">Quick &amp; Easy Setup: </span>No need to spend hours. With our carefully designed tree straps, you can hang your hammock well within a few moments. <span class="a-text-bold">Non-stretchable Polyester Webbing:</span> Makes it easier to set the height of your hammock. Since the straps do not lengthen with the weight, you know where your hammock would get once youre on it. Plus the premium quality polyester is sturdy enough to tolerate the tension and resistance against the tree etc. <span class="a-text-bold">Triple Stitches: </span>To make sure that the loops wouldnt break, no matter what!