This Duechle tree hammock is hand-crafted in a tradition that dates back over 100 years. It is made from a continuous woven bed of three-ply twisted rope with a soft comfortable construction. Spreader bars, made from solid wood for premium durability and strength, multiple coats of marine varnish are applied for beauty and longevity in the elements—the industry for stability and safety. Zinc plated 'o' rings are the largest and strongest in the industry. Get on with comfort and leave your cares behind. It will outperform other rope materials by resisting mildew and rot while remaining soft and comfortable. So hang your hammock, enjoy it, and relax!