The Tree Anchor is 3/8 T6 alluminum combined with 750 cord to give each anchor 750 lbs of minimum low stretch holding strenght. Weighing just 2 oz its great for those who are back packing or ultralighting to hang their hammocks with a pair or just a single unit to anchor your bear bag to a tree. You could also get creative with its extensive capability and use it as an pivot or pulley to redirect lines under load. Great for survivalist or others who only carry gear that serve more than one purpose!