100% poly pro polyester EASY SET UP - Wrap one end around a tree and pull through opposite loop OR wrap straps around the tree once or twice and use both loops to secure your hammock. ONLY 3 OZ & PACKS SMALL - Hammock Bliss Tree Straps are the lightest weight and most compact tree straps on earth. Set of 2 Tree Straps are only 3 oz and fit into a 3" x 5" carry bag TREE FRIENDLY - Wide webbing protects both the tree and your rope from abrasion. Great for camping, backpacking, backyards and travel. Works great with most any portable hammock including Hammock Bliss, ENO, Grand Trunk, Kammok, Hennessey and Yukon SAFETY FIRST - Safely holds 400 pounds per strap - bar tack stitching and non stretch polypro webbing means you can hang our in your hammock with confidence TECH SPECS - Quality polypropylene webbing - 61'' x 1.5'' or 153 cm x 4 cm - Weight: 3 oz or 90 grams